homework 7

Overview

In this assignment, you will practice calculating support and confidence, and you will use R to apply association rule mining to a “bag of words” data set For this assignment, you will use the provided template file (provided on blackboard) for your homework assignment. Include your responses to each question under the appropriate header. You will need to add code chunks as necessary.

Objectives

• Calculate support of item sets given transaction database • Calculate support of association rules given transaction database • Calculate confidence of association rules given transaction database • Use the Apriori algorithm to find frequent item sets with R • Use the Apriori algorithm to find association rules with R

Grading

• Uploaded requested files: 5% • File is properly formatted, using the template provided on blackboard: 5% • Part A (all questions weighted evenly): 45% • Part B (all questions weighted evenly): 45%

Deliverables

  • .pdf file (generated by knitting your .Rmd file)
  • .Rmd file (used to generate your pdf file)

##PART ONE

library(imager)
## Loading required package: magrittr
## 
## Attaching package: 'imager'
## The following object is masked from 'package:magrittr':
## 
##     add
## The following objects are masked from 'package:stats':
## 
##     convolve, spectrum
## The following object is masked from 'package:graphics':
## 
##     frame
## The following object is masked from 'package:base':
## 
##     save.image
im1 = load.image("C:/Users/Hp/Pictures/one.png")

plot(im1)

im2 = load.image("C:/Users/Hp/Pictures/two.png")

plot(im2)

Setup

PART B

loading the packages into R work space.

library(arules)
library(readr)
library(knitr)
library(gridExtra) 
library(lubridate) 
library(DT)
library(data.table)

Importing the data set

library(readr)
setwd("C:/Users/Hp/3D Objects/New folder")
words_kos <- read_csv("words_kos.csv")
words_kos[complete.cases(words_kos),]
## # A tibble: 1 × 457
##   damn   inadequate wrote  added kerry engaged revea…¹ john  presi…² final wmd  
##   <chr>  <chr>      <chr>  <chr> <chr> <chr>   <chr>   <chr> <chr>   <chr> <chr>
## 1 showed event      school ill   exit  create  group   reca… happily func… list…
## # … with 446 more variables: mistake <chr>, republican <chr>, real <chr>,
## #   weapons <chr>, member <chr>, click <chr>, enlarge <chr>, lower <chr>,
## #   gooper <chr>, knowing <chr>, view <chr>, career <chr>, battle <chr>,
## #   substantial <chr>, destruction <chr>, launch <chr>, november <chr>,
## #   bush <chr>, action <chr>, letter <chr>, congressional <chr>, doug <chr>,
## #   alliances <chr>, broad <chr>, dramatic <chr>, richards <chr>,
## #   countrys <chr>, news <chr>, compared <chr>, opportunity <chr>, …
dats <- strsplit(as.character(words_kos),',',fixed=T)   
trans <- as(dats, "transactions")

7. Use the Apriori algorithm (e.g., from the arules package) to identify all frequent itemsets with a minimum support of 0.3 (i.e., 30%). Use the inspect function to print out the frequent item sets that you identify.

itemsets<-apriori(trans,parameter=list(support=0.3,confidence=0.9, target="frequent itemsets"))
## Apriori
## 
## Parameter specification:
##  confidence minval smax arem  aval originalSupport maxtime support minlen
##          NA    0.1    1 none FALSE            TRUE       5     0.3      1
##  maxlen            target  ext
##      10 frequent itemsets TRUE
## 
## Algorithmic control:
##  filter tree heap memopt load sort verbose
##     0.1 TRUE TRUE  FALSE TRUE    2    TRUE
## 
## Absolute minimum support count: 137 
## 
## set item appearances ...[0 item(s)] done [0.02s].
## set transactions ...[9667 item(s), 457 transaction(s)] done [0.16s].
## sorting and recoding items ... [90 item(s)] done [0.00s].
## creating transaction tree ... done [0.00s].
## checking subsets of size 1 2 3 4 5 6 7 8 done [0.06s].
## sorting transactions ... done [0.00s].
## writing ... [6512 set(s)] done [0.00s].
## creating S4 object  ... done [0.00s].
inspect(itemsets)
##        items                  support count
## [1]    { "username"}        0.3041575   139
## [2]    { "bushsux"}         0.3085339   141
## [3]    { "admin"}           0.3260394   149
## [4]    { "select"}          0.3544858   162
## [5]    { "profile"}         0.3019694   138
## [6]    { "homepage"}        0.3347921   153
## [7]    { "ourcongressorg"}  0.3063457   140
## [8]    { "section"}         0.3435449   157
## [9]    { "friends"}         0.3085339   141
## [10]   { "recommended"}     0.3085339   141
## [11]   { "challenge"}       0.4048140   185
## [12]   { "experience"}      0.3369803   154
## [13]   { NA)}               0.8446389   386
## [14]   { "called"}          0.3150985   144
## [15]   { "split"}           0.3019694   138
## [16]   { "labor"}           0.4310722   197
## [17]   { "talking"}         0.3216630   147
## [18]   { "security"}        0.3610503   165
## [19]   { "north"}           0.3172867   145
## [20]   { "message"}         0.3019694   138
## [21]   { "yesterday"}       0.3085339   141
## [22]   { "zogby"}           0.3304158   151
## [23]   { "force"}           0.3610503   165
## [24]   { "attack"}          0.3435449   157
## [25]   { "hard"}            0.3632385   166
## [26]   { "watch"}           0.3479212   159
## [27]   { "congress"}        0.3522976   161
## [28]   { "victory"}         0.3610503   165
## [29]   { "ohio"}            0.3129103   143
## [30]   { "reason"}          0.3457330   158
## [31]   { "money"}           0.3588621   164
## [32]   { "find"}            0.3610503   165
## [33]   { "weve"}            0.3304158   151
## [34]   { "record"}          0.3326039   152
## [35]   { "found"}           0.3129103   143
## [36]   {c(NA}               0.8774617   401
## [37]   { "whats"}           0.3610503   165
## [38]   { "wont"}            0.3194748   146
## [39]   { "iowa"}            0.3150985   144
## [40]   { "important"}       0.4332604   198
## [41]   { "media"}           0.4354486   199
## [42]   { "polling"}         0.3194748   146
## [43]   { "making"}          0.3326039   152
## [44]   { "jan"}             0.3282276   150
## [45]   { "large"}           0.3019694   138
## [46]   { "lets"}            0.3063457   140
## [47]   { "bill"}            0.3282276   150
## [48]   { "national"}        0.4048140   185
## [49]   { "place"}           0.3785558   173
## [50]   { "aug"}             0.3347921   153
## [51]   { "put"}             0.4026258   184
## [52]   { "kerrys"}          0.3479212   159
## [53]   { "top"}             0.3566740   163
## [54]   { "fact"}            0.3107221   142
## [55]   { "elections"}       0.3916849   179
## [56]   { "candidates"}      0.3982495   182
## [57]   { "meteor"}          0.4004376   183
## [58]   { "washington"}      0.3194748   146
## [59]   { "ive"}             0.3019694   138
## [60]   { "military"}        0.4026258   184
## [61]   { "vote"}            0.4223195   193
## [62]   { "report"}          0.4004376   183
## [63]   { "bushs"}           0.4442013   203
## [64]   { "dean"}            0.3041575   139
## [65]   { "million"}         0.4266958   195
## [66]   { "sep"}             0.3479212   159
## [67]   { "dem"}             0.3916849   179
## [68]   { "lead"}            0.4398249   201
## [69]   { "general"}         0.4945295   226
## [70]   { "state"}           0.3150985   144
## [71]   { "races"}           0.3829322   175
## [72]   { "times"}           0.3282276   150
## [73]   { "george"}          0.3763676   172
## [74]   { "sun"}             0.3435449   157
## [75]   { "percent"}         0.3107221   142
## [76]   { "years"}           0.3588621   164
## [77]   { "numbers"}         0.4463895   204
## [78]   { "american"}        0.4157549   190
## [79]   { "senate"}          0.3150985   144
## [80]   { "iraq"}            0.3894967   178
## [81]   { "campaign"}        0.5098468   233
## [82]   { "political"}       0.3807440   174
## [83]   { "voters"}          0.4945295   226
## [84]   { "administration"}  0.3960613   181
## [85]   { "republicans"}     0.4113786   188
## [86]   { "polls"}           0.5054705   231
## [87]   { 
## NA}              0.9496718   434
## [88]   { "war"}             0.4135667   189
## [89]   { NA}                0.9628009   440
## [90]   { "people"}          0.5623632   257
## [91]   { "username",                       
##          NA)}               0.3019694   138
## [92]   { "username",                       
##         c(NA}               0.3041575   139
## [93]   { 
## NA,                             
##          "username"}        0.3041575   139
## [94]   { "username",                       
##          NA}                0.3041575   139
## [95]   { "bushsux",                        
##          NA)}               0.3085339   141
## [96]   { "bushsux",                        
##         c(NA}               0.3085339   141
## [97]   { 
## NA,                             
##          "bushsux"}         0.3085339   141
## [98]   { "bushsux",                        
##          NA}                0.3085339   141
## [99]   { "admin",                          
##          NA)}               0.3019694   138
## [100]  { "admin",                          
##         c(NA}               0.3063457   140
## [101]  { 
## NA,                             
##          "admin"}           0.3260394   149
## [102]  { "admin",                          
##          NA}                0.3260394   149
## [103]  { "select",                         
##          NA)}               0.3435449   157
## [104]  { "select",                         
##         c(NA}               0.3457330   158
## [105]  { 
## NA,                             
##          "select"}          0.3544858   162
## [106]  { "select",                         
##          NA}                0.3544858   162
## [107]  { 
## NA,                             
##          "profile"}         0.3019694   138
## [108]  { "profile",                        
##          NA}                0.3019694   138
## [109]  { "homepage",                       
##          NA)}               0.3172867   145
## [110]  { "homepage",                       
##         c(NA}               0.3172867   145
## [111]  { 
## NA,                             
##          "homepage"}        0.3326039   152
## [112]  { "homepage",                       
##          NA}                0.3326039   152
## [113]  { "homepage",                       
##          "people"}          0.3063457   140
## [114]  { "ourcongressorg",                 
##          NA}                0.3019694   138
## [115]  { "section",                        
##          NA)}               0.3194748   146
## [116]  { "section",                        
##         c(NA}               0.3238512   148
## [117]  { 
## NA,                             
##          "section"}         0.3282276   150
## [118]  { "section",                        
##          NA}                0.3369803   154
## [119]  { 
## NA,                             
##          "friends"}         0.3041575   139
## [120]  { "friends",                        
##          NA}                0.3085339   141
## [121]  { "challenge",                      
##          NA)}               0.3676149   168
## [122]  { "challenge",                      
##         c(NA}               0.3763676   172
## [123]  { "campaign",                       
##          "challenge"}       0.3063457   140
## [124]  { "challenge",                      
##          "voters"}          0.3172867   145
## [125]  { "challenge",                      
##          "polls"}           0.3085339   141
## [126]  { 
## NA,                             
##          "challenge"}       0.4048140   185
## [127]  { "challenge",                      
##          NA}                0.4048140   185
## [128]  { "challenge",                      
##          "people"}          0.3369803   154
## [129]  { "experience",                     
##         c(NA}               0.3085339   141
## [130]  { "campaign",                       
##          "experience"}      0.3019694   138
## [131]  { "experience",                     
##          "polls"}           0.3085339   141
## [132]  { 
## NA,                             
##          "experience"}      0.3216630   147
## [133]  { "experience",                     
##          NA}                0.3304158   151
## [134]  { "experience",                     
##          "people"}          0.3260394   149
## [135]  { "labor",                          
##          NA)}               0.3873085   177
## [136]  { "security",                       
##          NA)}               0.3107221   142
## [137]  { "force",                          
##          NA)}               0.3085339   141
## [138]  { "hard",                           
##          NA)}               0.3019694   138
## [139]  { NA),                              
##         c(NA}               0.8446389   386
## [140]  { "important",                      
##          NA)}               0.3632385   166
## [141]  { "media",                          
##          NA)}               0.3741794   171
## [142]  { "national",                       
##          NA)}               0.3391685   155
## [143]  { "put",                            
##          NA)}               0.3238512   148
## [144]  { "elections",                      
##          NA)}               0.3085339   141
## [145]  { "candidates",                     
##          NA)}               0.3172867   145
## [146]  { "meteor",                         
##          NA)}               0.3129103   143
## [147]  { "military",                       
##          NA)}               0.3107221   142
## [148]  { "vote",                           
##          NA)}               0.3369803   154
## [149]  { "report",                         
##          NA)}               0.3085339   141
## [150]  { "bushs",                          
##          NA)}               0.3632385   166
## [151]  { "million",                        
##          NA)}               0.3304158   151
## [152]  { "lead",                           
##          NA)}               0.3566740   163
## [153]  { "general",                        
##          NA)}               0.4113786   188
## [154]  { "numbers",                        
##          NA)}               0.3391685   155
## [155]  { "american",                       
##          NA)}               0.3041575   139
## [156]  { "campaign",                       
##          NA)}               0.4091904   187
## [157]  { "voters",                         
##          NA)}               0.3894967   178
## [158]  { "polls",                          
##          NA)}               0.3938731   180
## [159]  { 
## NA,                             
##          NA)}               0.8446389   386
## [160]  { NA,                               
##          NA)}               0.8446389   386
## [161]  { "people",                         
##          NA)}               0.4310722   197
## [162]  { 
## NA,                             
##          "called"}          0.3019694   138
## [163]  { "called",                         
##          NA}                0.3129103   143
## [164]  { "split",                          
##          NA}                0.3019694   138
## [165]  { "labor",                          
##         c(NA}               0.3916849   179
## [166]  { "important",                      
##          "labor"}           0.3085339   141
## [167]  { "labor",                          
##          "lead"}            0.3085339   141
## [168]  { "general",                        
##          "labor"}           0.3085339   141
## [169]  { "labor",                          
##          "numbers"}         0.3172867   145
## [170]  { "campaign",                       
##          "labor"}           0.3457330   158
## [171]  { "labor",                          
##          "voters"}          0.3391685   155
## [172]  { "labor",                          
##          "polls"}           0.3544858   162
## [173]  { 
## NA,                             
##          "labor"}           0.4310722   197
## [174]  { "labor",                          
##          NA}                0.4310722   197
## [175]  { "labor",                          
##          "people"}          0.3676149   168
## [176]  { 
## NA,                             
##          "talking"}         0.3129103   143
## [177]  { "talking",                        
##          NA}                0.3216630   147
## [178]  { "security",                       
##         c(NA}               0.3260394   149
## [179]  { "security",                       
##          "voters"}          0.3172867   145
## [180]  { "polls",                          
##          "security"}        0.3085339   141
## [181]  { 
## NA,                             
##          "security"}        0.3610503   165
## [182]  { "security",                       
##          NA}                0.3610503   165
## [183]  { "people",                         
##          "security"}        0.3238512   148
## [184]  { 
## NA,                             
##          "north"}           0.3107221   142
## [185]  { "north",                          
##          NA}                0.3172867   145
## [186]  { "yesterday",                      
##          NA}                0.3063457   140
## [187]  { 
## NA,                             
##          "zogby"}           0.3216630   147
## [188]  { "zogby",                          
##          NA}                0.3304158   151
## [189]  { "people",                         
##          "zogby"}           0.3041575   139
## [190]  { "force",                          
##         c(NA}               0.3172867   145
## [191]  { "campaign",                       
##          "force"}           0.3369803   154
## [192]  { "force",                          
##          "voters"}          0.3216630   147
## [193]  { "force",                          
##          "polls"}           0.3347921   153
## [194]  { 
## NA,                             
##          "force"}           0.3544858   162
## [195]  { "force",                          
##          NA}                0.3610503   165
## [196]  { "force",                          
##          "people"}          0.3304158   151
## [197]  { 
## NA,                             
##          "attack"}          0.3413567   156
## [198]  { "attack",                         
##          NA}                0.3435449   157
## [199]  { "attack",                         
##          "people"}          0.3194748   146
## [200]  { "hard",                           
##         c(NA}               0.3260394   149
## [201]  { "hard",                           
##          "vote"}            0.3019694   138
## [202]  { "general",                        
##          "hard"}            0.3194748   146
## [203]  { 
## NA,                             
##          "hard"}            0.3260394   149
## [204]  { "hard",                           
##          NA}                0.3326039   152
## [205]  { "hard",                           
##          "people"}          0.3107221   142
## [206]  { "campaign",                       
##          "watch"}           0.3129103   143
## [207]  { "voters",                         
##          "watch"}           0.3041575   139
## [208]  { "polls",                          
##          "watch"}           0.3150985   144
## [209]  { 
## NA,                             
##          "watch"}           0.3369803   154
## [210]  { "watch",                          
##          NA}                0.3457330   158
## [211]  { "people",                         
##          "watch"}           0.3216630   147
## [212]  { "campaign",                       
##          "congress"}        0.3129103   143
## [213]  { "congress",                       
##          "polls"}           0.3085339   141
## [214]  { 
## NA,                             
##          "congress"}        0.3413567   156
## [215]  { "congress",                       
##          NA}                0.3501094   160
## [216]  { "congress",                       
##          "people"}          0.3129103   143
## [217]  { "victory",                        
##         c(NA}               0.3085339   141
## [218]  { "campaign",                       
##          "victory"}         0.3129103   143
## [219]  { "victory",                        
##          "voters"}          0.3172867   145
## [220]  { "polls",                          
##          "victory"}         0.3282276   150
## [221]  { 
## NA,                             
##          "victory"}         0.3522976   161
## [222]  { "victory",                        
##          NA}                0.3610503   165
## [223]  { "people",                         
##          "victory"}         0.3369803   154
## [224]  { "polls",                          
##          "reason"}          0.3041575   139
## [225]  { 
## NA,                             
##          "reason"}          0.3369803   154
## [226]  { "reason",                         
##          NA}                0.3413567   156
## [227]  { "people",                         
##          "reason"}          0.3238512   148
## [228]  { "money",                          
##         c(NA}               0.3216630   147
## [229]  { "media",                          
##          "money"}           0.3304158   151
## [230]  { "money",                          
##          "national"}        0.3194748   146
## [231]  { "elections",                      
##          "money"}           0.3085339   141
## [232]  { "money",                          
##          "vote"}            0.3369803   154
## [233]  { "bushs",                          
##          "money"}           0.3063457   140
## [234]  { "lead",                           
##          "money"}           0.3107221   142
## [235]  { "general",                        
##          "money"}           0.3501094   160
## [236]  { "campaign",                       
##          "money"}           0.3041575   139
## [237]  { "money",                          
##          "polls"}           0.3085339   141
## [238]  { 
## NA,                             
##          "money"}           0.3238512   148
## [239]  { "money",                          
##          NA}                0.3238512   148
## [240]  { "money",                          
##          "people"}          0.3347921   153
## [241]  { "find",                           
##         c(NA}               0.3063457   140
## [242]  { "find",                           
##          "voters"}          0.3041575   139
## [243]  { "find",                           
##          "polls"}           0.3107221   142
## [244]  { 
## NA,                             
##          "find"}            0.3544858   162
## [245]  { "find",                           
##          NA}                0.3544858   162
## [246]  { "find",                           
##          "people"}          0.3238512   148
## [247]  { "campaign",                       
##          "weve"}            0.3041575   139
## [248]  { 
## NA,                             
##          "weve"}            0.3085339   141
## [249]  { "weve",                           
##          NA}                0.3216630   147
## [250]  { "people",                         
##          "weve"}            0.3107221   142
## [251]  { 
## NA,                             
##          "record"}          0.3019694   138
## [252]  { "record",                         
##          NA}                0.3150985   144
## [253]  { "people",                         
##          "record"}          0.3107221   142
## [254]  { 
## NA,                             
##          "found"}           0.3085339   141
## [255]  { "found",                          
##          NA}                0.3129103   143
## [256]  { "whats",                          
##         c(NA}               0.3041575   139
## [257]  { "important",                      
##         c(NA}               0.3676149   168
## [258]  { "media",                          
##         c(NA}               0.4026258   184
## [259]  { "national",                       
##         c(NA}               0.3698031   169
## [260]  { "place",                          
##         c(NA}               0.3085339   141
## [261]  { "put",                            
##         c(NA}               0.3347921   153
## [262]  { "elections",                      
##         c(NA}               0.3391685   155
## [263]  { "candidates",                     
##         c(NA}               0.3369803   154
## [264]  { "meteor",                         
##         c(NA}               0.3260394   149
## [265]  { "military",                       
##         c(NA}               0.3260394   149
## [266]  { "vote",                           
##         c(NA}               0.3676149   168
## [267]  { "report",                         
##         c(NA}               0.3150985   144
## [268]  { "bushs",                          
##         c(NA}               0.3851204   176
## [269]  { "million",                        
##         c(NA}               0.3588621   164
## [270]  { "dem",                            
##         c(NA}               0.3260394   149
## [271]  { "lead",                           
##         c(NA}               0.3785558   173
## [272]  { "general",                        
##         c(NA}               0.4420131   202
## [273]  { "races",                          
##         c(NA}               0.3129103   143
## [274]  { "numbers",                        
##         c(NA}               0.3698031   169
## [275]  { "american",                       
##         c(NA}               0.3347921   153
## [276]  { "iraq",                           
##         c(NA}               0.3063457   140
## [277]  { "campaign",                       
##         c(NA}               0.4201313   192
## [278]  { "voters",                         
##         c(NA}               0.4113786   188
## [279]  { "republicans",                    
##         c(NA}               0.3107221   142
## [280]  { "polls",                          
##         c(NA}               0.4091904   187
## [281]  { 
## NA,                             
##         c(NA}               0.8774617   401
## [282]  { "war",                            
##         c(NA}               0.3150985   144
## [283]  { NA,                               
##         c(NA}               0.8774617   401
## [284]  { "people",                         
##         c(NA}               0.4617068   211
## [285]  { "voters",                         
##          "whats"}           0.3085339   141
## [286]  { "polls",                          
##          "whats"}           0.3129103   143
## [287]  { 
## NA,                             
##          "whats"}           0.3522976   161
## [288]  { "whats",                          
##          NA}                0.3610503   165
## [289]  { "people",                         
##          "whats"}           0.3150985   144
## [290]  { "people",                         
##          "wont"}            0.3019694   138
## [291]  { "iowa",                           
##          NA}                0.3107221   142
## [292]  { "iowa",                           
##          "people"}          0.3063457   140
## [293]  { "important",                      
##          "numbers"}         0.3129103   143
## [294]  { "campaign",                       
##          "important"}       0.3544858   162
## [295]  { "important",                      
##          "voters"}          0.3457330   158
## [296]  { "important",                      
##          "polls"}           0.3588621   164
## [297]  { 
## NA,                             
##          "important"}       0.4201313   192
## [298]  { "important",                      
##          NA}                0.4310722   197
## [299]  { "important",                      
##          "people"}          0.3654267   167
## [300]  { "media",                          
##          "national"}        0.3544858   162
## [301]  { "elections",                      
##          "media"}           0.3479212   159
## [302]  { "candidates",                     
##          "media"}           0.3063457   140
## [303]  { "media",                          
##          "vote"}            0.3654267   167
## [304]  { "bushs",                          
##          "media"}           0.3479212   159
## [305]  { "lead",                           
##          "media"}           0.3369803   154
## [306]  { "general",                        
##          "media"}           0.3873085   177
## [307]  { "media",                          
##          "numbers"}         0.3107221   142
## [308]  { "campaign",                       
##          "media"}           0.3326039   152
## [309]  { "media",                          
##          "voters"}          0.3282276   150
## [310]  { "media",                          
##          "polls"}           0.3347921   153
## [311]  { 
## NA,                             
##          "media"}           0.4026258   184
## [312]  { "media",                          
##          "war"}             0.3107221   142
## [313]  { "media",                          
##          NA}                0.4026258   184
## [314]  { "media",                          
##          "people"}          0.3698031   169
## [315]  { "polling",                        
##          NA}                0.3063457   140
## [316]  { "people",                         
##          "polling"}         0.3107221   142
## [317]  { "making",                         
##          "polls"}           0.3085339   141
## [318]  { 
## NA,                             
##          "making"}          0.3326039   152
## [319]  { "making",                         
##          NA}                0.3326039   152
## [320]  { "making",                         
##          "people"}          0.3150985   144
## [321]  { 
## NA,                             
##          "jan"}             0.3194748   146
## [322]  { "jan",                            
##          NA}                0.3282276   150
## [323]  { "jan",                            
##          "people"}          0.3129103   143
## [324]  { 
## NA,                             
##          "lets"}            0.3063457   140
## [325]  { "lets",                           
##          NA}                0.3063457   140
## [326]  { "bill",                           
##          "voters"}          0.3019694   138
## [327]  { "bill",                           
##          "polls"}           0.3063457   140
## [328]  { 
## NA,                             
##          "bill"}            0.3238512   148
## [329]  { "bill",                           
##          NA}                0.3282276   150
## [330]  { "bill",                           
##          "people"}          0.3238512   148
## [331]  { "elections",                      
##          "national"}        0.3391685   155
## [332]  { "national",                       
##          "vote"}            0.3610503   165
## [333]  { "bushs",                          
##          "national"}        0.3413567   156
## [334]  { "lead",                           
##          "national"}        0.3260394   149
## [335]  { "general",                        
##          "national"}        0.3719912   170
## [336]  { "national",                       
##          "numbers"}         0.3107221   142
## [337]  { "american",                       
##          "national"}        0.3019694   138
## [338]  { "campaign",                       
##          "national"}        0.3216630   147
## [339]  { "national",                       
##          "voters"}          0.3369803   154
## [340]  { "national",                       
##          "polls"}           0.3369803   154
## [341]  { 
## NA,                             
##          "national"}        0.3763676   172
## [342]  { "national",                       
##          "war"}             0.3085339   141
## [343]  { "national",                       
##          NA}                0.3763676   172
## [344]  { "national",                       
##          "people"}          0.3632385   166
## [345]  { "campaign",                       
##          "place"}           0.3457330   158
## [346]  { "place",                          
##          "voters"}          0.3172867   145
## [347]  { "place",                          
##          "polls"}           0.3413567   156
## [348]  { 
## NA,                             
##          "place"}           0.3544858   162
## [349]  { "place",                          
##          NA}                0.3676149   168
## [350]  { "people",                         
##          "place"}           0.3435449   157
## [351]  { 
## NA,                             
##          "aug"}             0.3260394   149
## [352]  { "aug",                            
##          NA}                0.3347921   153
## [353]  { "aug",                            
##          "people"}          0.3019694   138
## [354]  { "bushs",                          
##          "put"}             0.3019694   138
## [355]  { "lead",                           
##          "put"}             0.3107221   142
## [356]  { "numbers",                        
##          "put"}             0.3129103   143
## [357]  { "campaign",                       
##          "put"}             0.3566740   163
## [358]  { "put",                            
##          "voters"}          0.3238512   148
## [359]  { "polls",                          
##          "put"}             0.3544858   162
## [360]  { 
## NA,                             
##          "put"}             0.3807440   174
## [361]  { "put",                            
##          "war"}             0.3041575   139
## [362]  { "put",                            
##          NA}                0.3938731   180
## [363]  { "people",                         
##          "put"}             0.3610503   165
## [364]  { "campaign",                       
##          "kerrys"}          0.3326039   152
## [365]  { "kerrys",                         
##          "voters"}          0.3085339   141
## [366]  { "kerrys",                         
##          "polls"}           0.3260394   149
## [367]  { 
## NA,                             
##          "kerrys"}          0.3238512   148
## [368]  { "kerrys",                         
##          NA}                0.3369803   154
## [369]  { "kerrys",                         
##          "people"}          0.3304158   151
## [370]  { "numbers",                        
##          "top"}             0.3150985   144
## [371]  { "iraq",                           
##          "top"}             0.3019694   138
## [372]  { "campaign",                       
##          "top"}             0.3107221   142
## [373]  { "top",                            
##          "voters"}          0.3238512   148
## [374]  { "polls",                          
##          "top"}             0.3260394   149
## [375]  { 
## NA,                             
##          "top"}             0.3501094   160
## [376]  { "top",                            
##          "war"}             0.3107221   142
## [377]  { "top",                            
##          NA}                0.3566740   163
## [378]  { "people",                         
##          "top"}             0.3457330   158
## [379]  { "candidates",                     
##          "elections"}       0.3041575   139
## [380]  { "elections",                      
##          "vote"}            0.3610503   165
## [381]  { "bushs",                          
##          "elections"}       0.3501094   160
## [382]  { "elections",                      
##          "lead"}            0.3457330   158
## [383]  { "elections",                      
##          "general"}         0.3676149   168
## [384]  { "elections",                      
##          "numbers"}         0.3085339   141
## [385]  { "campaign",                       
##          "elections"}       0.3238512   148
## [386]  { "elections",                      
##          "voters"}          0.3194748   146
## [387]  { "elections",                      
##          "polls"}           0.3413567   156
## [388]  { 
## NA,                             
##          "elections"}       0.3413567   156
## [389]  { "elections",                      
##          "war"}             0.3238512   148
## [390]  { "elections",                      
##          NA}                0.3544858   162
## [391]  { "elections",                      
##          "people"}          0.3632385   166
## [392]  { "candidates",                     
##          "meteor"}          0.3085339   141
## [393]  { "candidates",                     
##          "vote"}            0.3150985   144
## [394]  { "bushs",                          
##          "candidates"}      0.3369803   154
## [395]  { "candidates",                     
##          "lead"}            0.3391685   155
## [396]  { "candidates",                     
##          "general"}         0.3391685   155
## [397]  { "candidates",                     
##          "numbers"}         0.3063457   140
## [398]  { "campaign",                       
##          "candidates"}      0.3522976   161
## [399]  { "candidates",                     
##          "voters"}          0.3347921   153
## [400]  { "candidates",                     
##          "polls"}           0.3435449   157
## [401]  { 
## NA,                             
##          "candidates"}      0.3654267   167
## [402]  { "candidates",                     
##          "war"}             0.3238512   148
## [403]  { "candidates",                     
##          NA}                0.3785558   173
## [404]  { "candidates",                     
##          "people"}          0.3763676   172
## [405]  { "bushs",                          
##          "meteor"}          0.3063457   140
## [406]  { "lead",                           
##          "meteor"}          0.3326039   152
## [407]  { "general",                        
##          "meteor"}          0.3150985   144
## [408]  { "meteor",                         
##          "numbers"}         0.3063457   140
## [409]  { "campaign",                       
##          "meteor"}          0.3610503   165
## [410]  { "meteor",                         
##          "voters"}          0.3326039   152
## [411]  { "meteor",                         
##          "polls"}           0.3610503   165
## [412]  { 
## NA,                             
##          "meteor"}          0.3719912   170
## [413]  { "meteor",                         
##          "war"}             0.3019694   138
## [414]  { "meteor",                         
##          NA}                0.3851204   176
## [415]  { "meteor",                         
##          "people"}          0.3741794   171
## [416]  { "military",                       
##          "million"}         0.3019694   138
## [417]  { "military",                       
##          "races"}           0.3019694   138
## [418]  { "military",                       
##          "numbers"}         0.3260394   149
## [419]  { "american",                       
##          "military"}        0.3216630   147
## [420]  { "iraq",                           
##          "military"}        0.3041575   139
## [421]  { "campaign",                       
##          "military"}        0.3501094   160
## [422]  { "military",                       
##          "voters"}          0.3566740   163
## [423]  { "military",                       
##          "polls"}           0.3676149   168
## [424]  { 
## NA,                             
##          "military"}        0.3894967   178
## [425]  { "military",                       
##          "war"}             0.3216630   147
## [426]  { "military",                       
##          NA}                0.4026258   184
## [427]  { "military",                       
##          "people"}          0.3851204   176
## [428]  { "bushs",                          
##          "vote"}            0.3632385   166
## [429]  { "lead",                           
##          "vote"}            0.3522976   161
## [430]  { "general",                        
##          "vote"}            0.4026258   184
## [431]  { "races",                          
##          "vote"}            0.3085339   141
## [432]  { "numbers",                        
##          "vote"}            0.3172867   145
## [433]  { "american",                       
##          "vote"}            0.3150985   144
## [434]  { "iraq",                           
##          "vote"}            0.3107221   142
## [435]  { "campaign",                       
##          "vote"}            0.3501094   160
## [436]  { "political",                      
##          "vote"}            0.3019694   138
## [437]  { "vote",                           
##          "voters"}          0.3457330   158
## [438]  { "republicans",                    
##          "vote"}            0.3041575   139
## [439]  { "polls",                          
##          "vote"}            0.3654267   167
## [440]  { 
## NA,                             
##          "vote"}            0.3763676   172
## [441]  { "vote",                           
##          "war"}             0.3260394   149
## [442]  { "vote",                           
##          NA}                0.3851204   176
## [443]  { "people",                         
##          "vote"}            0.3873085   177
## [444]  { "lead",                           
##          "report"}          0.3019694   138
## [445]  { "numbers",                        
##          "report"}          0.3150985   144
## [446]  { "american",                       
##          "report"}          0.3085339   141
## [447]  { "campaign",                       
##          "report"}          0.3610503   165
## [448]  { "report",                         
##          "voters"}          0.3369803   154
## [449]  { "polls",                          
##          "report"}          0.3588621   164
## [450]  { 
## NA,                             
##          "report"}          0.3807440   174
## [451]  { "report",                         
##          "war"}             0.3129103   143
## [452]  { "report",                         
##          NA}                0.3916849   179
## [453]  { "people",                         
##          "report"}          0.3588621   164
## [454]  { "bushs",                          
##          "dem"}             0.3041575   139
## [455]  { "bushs",                          
##          "lead"}            0.3654267   167
## [456]  { "bushs",                          
##          "general"}         0.3851204   176
## [457]  { "bushs",                          
##          "races"}           0.3041575   139
## [458]  { "bushs",                          
##          "numbers"}         0.3238512   148
## [459]  { "american",                       
##          "bushs"}           0.3107221   142
## [460]  { "bushs",                          
##          "iraq"}            0.3085339   141
## [461]  { "bushs",                          
##          "campaign"}        0.3676149   168
## [462]  { "bushs",                          
##          "political"}       0.3107221   142
## [463]  { "bushs",                          
##          "voters"}          0.3566740   163
## [464]  { "administration",                 
##          "bushs"}           0.3019694   138
## [465]  { "bushs",                          
##          "republicans"}     0.3107221   142
## [466]  { "bushs",                          
##          "polls"}           0.3785558   173
## [467]  { 
## NA,                             
##          "bushs"}           0.4048140   185
## [468]  { "bushs",                          
##          "war"}             0.3347921   153
## [469]  { "bushs",                          
##          NA}                0.4179431   191
## [470]  { "bushs",                          
##          "people"}          0.3894967   178
## [471]  { "dem",                            
##          "million"}         0.3107221   142
## [472]  { "lead",                           
##          "million"}         0.3150985   144
## [473]  { "general",                        
##          "million"}         0.3085339   141
## [474]  { "million",                        
##          "races"}           0.3107221   142
## [475]  { "million",                        
##          "numbers"}         0.3501094   160
## [476]  { "american",                       
##          "million"}         0.3238512   148
## [477]  { "iraq",                           
##          "million"}         0.3172867   145
## [478]  { "campaign",                       
##          "million"}         0.3566740   163
## [479]  { "million",                        
##          "political"}       0.3041575   139
## [480]  { "million",                        
##          "voters"}          0.3566740   163
## [481]  { "million",                        
##          "polls"}           0.3719912   170
## [482]  { 
## NA,                             
##          "million"}         0.4179431   191
## [483]  { "million",                        
##          "war"}             0.3282276   150
## [484]  { "million",                        
##          NA}                0.4266958   195
## [485]  { "million",                        
##          "people"}          0.3982495   182
## [486]  { "numbers",                        
##          "sep"}             0.3019694   138
## [487]  { "campaign",                       
##          "sep"}             0.3063457   140
## [488]  { "sep",                            
##          "voters"}          0.3238512   148
## [489]  { "polls",                          
##          "sep"}             0.3216630   147
## [490]  { 
## NA,                             
##          "sep"}             0.3369803   154
## [491]  { "sep",                            
##          "war"}             0.3041575   139
## [492]  { "sep",                            
##          NA}                0.3479212   159
## [493]  { "people",                         
##          "sep"}             0.3347921   153
## [494]  { "dem",                            
##          "lead"}            0.3150985   144
## [495]  { "dem",                            
##          "general"}         0.3194748   146
## [496]  { "dem",                            
##          "races"}           0.3194748   146
## [497]  { "dem",                            
##          "numbers"}         0.3326039   152
## [498]  { "american",                       
##          "dem"}             0.3216630   147
## [499]  { "dem",                            
##          "iraq"}            0.3282276   150
## [500]  { "campaign",                       
##          "dem"}             0.3479212   159
## [501]  { "dem",                            
##          "political"}       0.3238512   148
## [502]  { "dem",                            
##          "voters"}          0.3522976   161
## [503]  { "administration",                 
##          "dem"}             0.3019694   138
## [504]  { "dem",                            
##          "polls"}           0.3588621   164
## [505]  { 
## NA,                             
##          "dem"}             0.3807440   174
## [506]  { "dem",                            
##          "war"}             0.3457330   158
## [507]  { "dem",                            
##          NA}                0.3873085   177
## [508]  { "dem",                            
##          "people"}          0.3719912   170
## [509]  { "general",                        
##          "lead"}            0.3763676   172
## [510]  { "lead",                           
##          "races"}           0.3107221   142
## [511]  { "lead",                           
##          "numbers"}         0.3391685   155
## [512]  { "american",                       
##          "lead"}            0.3216630   147
## [513]  { "iraq",                           
##          "lead"}            0.3107221   142
## [514]  { "campaign",                       
##          "lead"}            0.3698031   169
## [515]  { "lead",                           
##          "political"}       0.3085339   141
## [516]  { "lead",                           
##          "voters"}          0.3566740   163
## [517]  { "lead",                           
##          "republicans"}     0.3172867   145
## [518]  { "lead",                           
##          "polls"}           0.3763676   172
## [519]  { 
## NA,                             
##          "lead"}            0.4048140   185
## [520]  { "lead",                           
##          "war"}             0.3347921   153
## [521]  { "lead",                           
##          NA}                0.4179431   191
## [522]  { "lead",                           
##          "people"}          0.4004376   183
## [523]  { "general",                        
##          "races"}           0.3194748   146
## [524]  { "general",                        
##          "years"}           0.3041575   139
## [525]  { "general",                        
##          "numbers"}         0.3326039   152
## [526]  { "american",                       
##          "general"}         0.3282276   150
## [527]  { "general",                        
##          "iraq"}            0.3216630   147
## [528]  { "campaign",                       
##          "general"}         0.3785558   173
## [529]  { "general",                        
##          "political"}       0.3129103   143
## [530]  { "general",                        
##          "voters"}          0.3654267   167
## [531]  { "administration",                 
##          "general"}         0.3041575   139
## [532]  { "general",                        
##          "republicans"}     0.3150985   144
## [533]  { "general",                        
##          "polls"}           0.3807440   174
## [534]  { 
## NA,                             
##          "general"}         0.4507659   206
## [535]  { "general",                        
##          "war"}             0.3391685   155
## [536]  { "general",                        
##          NA}                0.4617068   211
## [537]  { "general",                        
##          "people"}          0.4157549   190
## [538]  { "state",                          
##          NA}                0.3107221   142
## [539]  { "george",                         
##          "races"}           0.3129103   143
## [540]  { "numbers",                        
##          "races"}           0.3369803   154
## [541]  { "american",                       
##          "races"}           0.3391685   155
## [542]  { "iraq",                           
##          "races"}           0.3457330   158
## [543]  { "campaign",                       
##          "races"}           0.3501094   160
## [544]  { "political",                      
##          "races"}           0.3304158   151
## [545]  { "races",                          
##          "voters"}          0.3544858   162
## [546]  { "administration",                 
##          "races"}           0.3107221   142
## [547]  { "races",                          
##          "republicans"}     0.3019694   138
## [548]  { "polls",                          
##          "races"}           0.3676149   168
## [549]  { 
## NA,                             
##          "races"}           0.3763676   172
## [550]  { "races",                          
##          "war"}             0.3522976   161
## [551]  { "races",                          
##          NA}                0.3829322   175
## [552]  { "people",                         
##          "races"}           0.3763676   172
## [553]  { "times",                          
##          "war"}             0.3019694   138
## [554]  { "times",                          
##          NA}                0.3063457   140
## [555]  { "people",                         
##          "times"}           0.3150985   144
## [556]  { "george",                         
##          "numbers"}         0.3260394   149
## [557]  { "american",                       
##          "george"}          0.3347921   153
## [558]  { "george",                         
##          "iraq"}            0.3238512   148
## [559]  { "campaign",                       
##          "george"}          0.3326039   152
## [560]  { "george",                         
##          "political"}       0.3260394   149
## [561]  { "george",                         
##          "voters"}          0.3391685   155
## [562]  { "administration",                 
##          "george"}          0.3019694   138
## [563]  { "george",                         
##          "polls"}           0.3501094   160
## [564]  { 
## NA,                             
##          "george"}          0.3632385   166
## [565]  { "george",                         
##          "war"}             0.3413567   156
## [566]  { "george",                         
##          NA}                0.3741794   171
## [567]  { "george",                         
##          "people"}          0.3632385   166
## [568]  { "polls",                          
##          "sun"}             0.3019694   138
## [569]  { 
## NA,                             
##          "sun"}             0.3216630   147
## [570]  { "sun",                            
##          "war"}             0.3085339   141
## [571]  { "sun",                            
##          NA}                0.3326039   152
## [572]  { "people",                         
##          "sun"}             0.3172867   145
## [573]  { "percent",                        
##          "war"}             0.3041575   139
## [574]  { "people",                         
##          "percent"}         0.3041575   139
## [575]  { "american",                       
##          "years"}           0.3019694   138
## [576]  { "iraq",                           
##          "years"}           0.3085339   141
## [577]  { "campaign",                       
##          "years"}           0.3129103   143
## [578]  { "political",                      
##          "years"}           0.3172867   145
## [579]  { "voters",                         
##          "years"}           0.3107221   142
## [580]  { "administration",                 
##          "years"}           0.3172867   145
## [581]  { "republicans",                    
##          "years"}           0.3216630   147
## [582]  { "polls",                          
##          "years"}           0.3194748   146
## [583]  { 
## NA,                             
##          "years"}           0.3216630   147
## [584]  { "war",                            
##          "years"}           0.3304158   151
## [585]  { "years",                          
##          NA}                0.3347921   153
## [586]  { "people",                         
##          "years"}           0.3457330   158
## [587]  { "american",                       
##          "numbers"}         0.3501094   160
## [588]  { "iraq",                           
##          "numbers"}         0.3457330   158
## [589]  { "campaign",                       
##          "numbers"}         0.3763676   172
## [590]  { "numbers",                        
##          "political"}       0.3413567   156
## [591]  { "numbers",                        
##          "voters"}          0.3916849   179
## [592]  { "administration",                 
##          "numbers"}         0.3172867   145
## [593]  { "numbers",                        
##          "republicans"}     0.3150985   144
## [594]  { "numbers",                        
##          "polls"}           0.3938731   180
## [595]  { 
## NA,                             
##          "numbers"}         0.4376368   200
## [596]  { "numbers",                        
##          "war"}             0.3632385   166
## [597]  { "numbers",                        
##          NA}                0.4463895   204
## [598]  { "numbers",                        
##          "people"}          0.4157549   190
## [599]  { "american",                       
##          "iraq"}            0.3479212   159
## [600]  { "american",                       
##          "campaign"}        0.3588621   164
## [601]  { "american",                       
##          "political"}       0.3413567   156
## [602]  { "american",                       
##          "voters"}          0.3610503   165
## [603]  { "administration",                 
##          "american"}        0.3282276   150
## [604]  { "american",                       
##          "republicans"}     0.3238512   148
## [605]  { "american",                       
##          "polls"}           0.3719912   170
## [606]  { 
## NA,                             
##          "american"}        0.4026258   184
## [607]  { "american",                       
##          "war"}             0.3544858   162
## [608]  { "american",                       
##          NA}                0.4113786   188
## [609]  { "american",                       
##          "people"}          0.3916849   179
## [610]  { "republicans",                    
##          "senate"}          0.3019694   138
## [611]  { "senate",                         
##          "war"}             0.3063457   140
## [612]  { "people",                         
##          "senate"}          0.3041575   139
## [613]  { "campaign",                       
##          "iraq"}            0.3501094   160
## [614]  { "iraq",                           
##          "political"}       0.3501094   160
## [615]  { "iraq",                           
##          "voters"}          0.3676149   168
## [616]  { "administration",                 
##          "iraq"}            0.3260394   149
## [617]  { "iraq",                           
##          "republicans"}     0.3194748   146
## [618]  { "iraq",                           
##          "polls"}           0.3719912   170
## [619]  { 
## NA,                             
##          "iraq"}            0.3763676   172
## [620]  { "iraq",                           
##          "war"}             0.3632385   166
## [621]  { "iraq",                           
##          NA}                0.3873085   177
## [622]  { "iraq",                           
##          "people"}          0.3829322   175
## [623]  { "campaign",                       
##          "political"}       0.3413567   156
## [624]  { "campaign",                       
##          "voters"}          0.4179431   191
## [625]  { "administration",                 
##          "campaign"}        0.3282276   150
## [626]  { "campaign",                       
##          "republicans"}     0.3216630   147
## [627]  { "campaign",                       
##          "polls"}           0.4420131   202
## [628]  { 
## NA,                             
##          "campaign"}        0.4857768   222
## [629]  { "campaign",                       
##          "war"}             0.3676149   168
## [630]  { "campaign",                       
##          NA}                0.4989059   228
## [631]  { "campaign",                       
##          "people"}          0.4638950   212
## [632]  { "political",                      
##          "voters"}          0.3522976   161
## [633]  { "administration",                 
##          "political"}       0.3347921   153
## [634]  { "political",                      
##          "republicans"}     0.3326039   152
## [635]  { "political",                      
##          "polls"}           0.3610503   165
## [636]  { 
## NA,                             
##          "political"}       0.3588621   164
## [637]  { "political",                      
##          "war"}             0.3698031   169
## [638]  { "political",                      
##          NA}                0.3719912   170
## [639]  { "people",                         
##          "political"}       0.3741794   171
## [640]  { "administration",                 
##          "voters"}          0.3282276   150
## [641]  { "republicans",                    
##          "voters"}          0.3238512   148
## [642]  { "polls",                          
##          "voters"}          0.4354486   199
## [643]  { 
## NA,                             
##          "voters"}          0.4835886   221
## [644]  { "voters",                         
##          "war"}             0.3785558   173
## [645]  { "voters",                         
##          NA}                0.4923414   225
## [646]  { "people",                         
##          "voters"}          0.4551422   208
## [647]  { "administration",                 
##          "republicans"}     0.3369803   154
## [648]  { "administration",                 
##          "polls"}           0.3391685   155
## [649]  { 
## NA,                             
##          "administration"}  0.3654267   167
## [650]  { "administration",                 
##          "war"}             0.3457330   158
## [651]  { "administration",                 
##          NA}                0.3785558   173
## [652]  { "administration",                 
##          "people"}          0.3632385   166
## [653]  { "polls",                          
##          "republicans"}     0.3326039   152
## [654]  { 
## NA,                             
##          "republicans"}     0.3719912   170
## [655]  { "republicans",                    
##          "war"}             0.3435449   157
## [656]  { "republicans",                    
##          NA}                0.3851204   176
## [657]  { "people",                         
##          "republicans"}     0.3566740   163
## [658]  { 
## NA,                             
##          "polls"}           0.4814004   220
## [659]  { "polls",                          
##          "war"}             0.3916849   179
## [660]  { "polls",                          
##          NA}                0.4945295   226
## [661]  { "people",                         
##          "polls"}           0.4660832   213
## [662]  { 
## NA,                             
##          "war"}             0.3873085   177
## [663]  { 
## NA,                             
##          NA}                0.9496718   434
## [664]  { 
## NA,                             
##          "people"}          0.5317287   243
## [665]  { "war",                            
##          NA}                0.4004376   183
## [666]  { "people",                         
##          "war"}             0.4026258   184
## [667]  { "people",                         
##          NA}                0.5448578   249
## [668]  { "username",                       
##          NA),                              
##         c(NA}               0.3019694   138
## [669]  { 
## NA,                             
##          "username",                       
##          NA)}               0.3019694   138
## [670]  { "username",                       
##          NA,                               
##          NA)}               0.3019694   138
## [671]  { 
## NA,                             
##          "username",                       
##         c(NA}               0.3041575   139
## [672]  { "username",                       
##          NA,                               
##         c(NA}               0.3041575   139
## [673]  { 
## NA,                             
##          "username",                       
##          NA}                0.3041575   139
## [674]  { "bushsux",                        
##          NA),                              
##         c(NA}               0.3085339   141
## [675]  { 
## NA,                             
##          "bushsux",                        
##          NA)}               0.3085339   141
## [676]  { "bushsux",                        
##          NA,                               
##          NA)}               0.3085339   141
## [677]  { 
## NA,                             
##          "bushsux",                        
##         c(NA}               0.3085339   141
## [678]  { "bushsux",                        
##          NA,                               
##         c(NA}               0.3085339   141
## [679]  { 
## NA,                             
##          "bushsux",                        
##          NA}                0.3085339   141
## [680]  { "admin",                          
##          NA),                              
##         c(NA}               0.3019694   138
## [681]  { 
## NA,                             
##          "admin",                          
##          NA)}               0.3019694   138
## [682]  { "admin",                          
##          NA,                               
##          NA)}               0.3019694   138
## [683]  { 
## NA,                             
##          "admin",                          
##         c(NA}               0.3063457   140
## [684]  { "admin",                          
##          NA,                               
##         c(NA}               0.3063457   140
## [685]  { 
## NA,                             
##          "admin",                          
##          NA}                0.3260394   149
## [686]  { "select",                         
##          NA),                              
##         c(NA}               0.3435449   157
## [687]  { 
## NA,                             
##          "select",                         
##          NA)}               0.3435449   157
## [688]  { "select",                         
##          NA,                               
##          NA)}               0.3435449   157
## [689]  { 
## NA,                             
##          "select",                         
##         c(NA}               0.3457330   158
## [690]  { "select",                         
##          NA,                               
##         c(NA}               0.3457330   158
## [691]  { 
## NA,                             
##          "select",                         
##          NA}                0.3544858   162
## [692]  { 
## NA,                             
##          "profile",                        
##          NA}                0.3019694   138
## [693]  { "homepage",                       
##          NA),                              
##         c(NA}               0.3172867   145
## [694]  { 
## NA,                             
##          "homepage",                       
##          NA)}               0.3172867   145
## [695]  { "homepage",                       
##          NA,                               
##          NA)}               0.3172867   145
## [696]  { 
## NA,                             
##          "homepage",                       
##         c(NA}               0.3172867   145
## [697]  { "homepage",                       
##          NA,                               
##         c(NA}               0.3172867   145
## [698]  { 
## NA,                             
##          "homepage",                       
##          NA}                0.3326039   152
## [699]  { 
## NA,                             
##          "homepage",                       
##          "people"}          0.3041575   139
## [700]  { "homepage",                       
##          "people",                         
##          NA}                0.3041575   139
## [701]  { "section",                        
##          NA),                              
##         c(NA}               0.3194748   146
## [702]  { 
## NA,                             
##          "section",                        
##          NA)}               0.3194748   146
## [703]  { "section",                        
##          NA,                               
##          NA)}               0.3194748   146
## [704]  { 
## NA,                             
##          "section",                        
##         c(NA}               0.3238512   148
## [705]  { "section",                        
##          NA,                               
##         c(NA}               0.3238512   148
## [706]  { 
## NA,                             
##          "section",                        
##          NA}                0.3282276   150
## [707]  { 
## NA,                             
##          "friends",                        
##          NA}                0.3041575   139
## [708]  { "challenge",                      
##          NA),                              
##         c(NA}               0.3676149   168
## [709]  { 
## NA,                             
##          "challenge",                      
##          NA)}               0.3676149   168
## [710]  { "challenge",                      
##          NA,                               
##          NA)}               0.3676149   168
## [711]  { "challenge",                      
##          "people",                         
##          NA)}               0.3041575   139
## [712]  { 
## NA,                             
##          "challenge",                      
##         c(NA}               0.3763676   172
## [713]  { "challenge",                      
##          NA,                               
##         c(NA}               0.3763676   172
## [714]  { "challenge",                      
##          "people",                         
##         c(NA}               0.3107221   142
## [715]  { 
## NA,                             
##          "campaign",                       
##          "challenge"}       0.3063457   140
## [716]  { "campaign",                       
##          "challenge",                      
##          NA}                0.3063457   140
## [717]  { 
## NA,                             
##          "challenge",                      
##          "voters"}          0.3172867   145
## [718]  { "challenge",                      
##          "voters",                         
##          NA}                0.3172867   145
## [719]  { 
## NA,                             
##          "challenge",                      
##          "polls"}           0.3085339   141
## [720]  { "challenge",                      
##          "polls",                          
##          NA}                0.3085339   141
## [721]  { 
## NA,                             
##          "challenge",                      
##          NA}                0.4048140   185
## [722]  { 
## NA,                             
##          "challenge",                      
##          "people"}          0.3369803   154
## [723]  { "challenge",                      
##          "people",                         
##          NA}                0.3369803   154
## [724]  { 
## NA,                             
##          "experience",                     
##         c(NA}               0.3085339   141
## [725]  { "experience",                     
##          NA,                               
##         c(NA}               0.3085339   141
## [726]  { "experience",                     
##          "polls",                          
##          NA}                0.3041575   139
## [727]  { 
## NA,                             
##          "experience",                     
##          NA}                0.3216630   147
## [728]  { 
## NA,                             
##          "experience",                     
##          "people"}          0.3107221   142
## [729]  { "experience",                     
##          "people",                         
##          NA}                0.3194748   146
## [730]  { "labor",                          
##          NA),                              
##         c(NA}               0.3873085   177
## [731]  { "general",                        
##          "labor",                          
##          NA)}               0.3041575   139
## [732]  { "campaign",                       
##          "labor",                          
##          NA)}               0.3085339   141
## [733]  { "labor",                          
##          "polls",                          
##          NA)}               0.3129103   143
## [734]  { 
## NA,                             
##          "labor",                          
##          NA)}               0.3873085   177
## [735]  { "labor",                          
##          NA,                               
##          NA)}               0.3873085   177
## [736]  { "labor",                          
##          "people",                         
##          NA)}               0.3260394   149
## [737]  { "security",                       
##          NA),                              
##         c(NA}               0.3107221   142
## [738]  { 
## NA,                             
##          "security",                       
##          NA)}               0.3107221   142
## [739]  { "security",                       
##          NA,                               
##          NA)}               0.3107221   142
## [740]  { "force",                          
##          NA),                              
##         c(NA}               0.3085339   141
## [741]  { 
## NA,                             
##          "force",                          
##          NA)}               0.3085339   141
## [742]  { "force",                          
##          NA,                               
##          NA)}               0.3085339   141
## [743]  { "hard",                           
##          NA),                              
##         c(NA}               0.3019694   138
## [744]  { 
## NA,                             
##          "hard",                           
##          NA)}               0.3019694   138
## [745]  { "hard",                           
##          NA,                               
##          NA)}               0.3019694   138
## [746]  { "important",                      
##          NA),                              
##         c(NA}               0.3632385   166
## [747]  { "media",                          
##          NA),                              
##         c(NA}               0.3741794   171
## [748]  { "national",                       
##          NA),                              
##         c(NA}               0.3391685   155
## [749]  { "put",                            
##          NA),                              
##         c(NA}               0.3238512   148
## [750]  { "elections",                      
##          NA),                              
##         c(NA}               0.3085339   141
## [751]  { "candidates",                     
##          NA),                              
##         c(NA}               0.3172867   145
## [752]  { "meteor",                         
##          NA),                              
##         c(NA}               0.3129103   143
## [753]  { "military",                       
##          NA),                              
##         c(NA}               0.3107221   142
## [754]  { "vote",                           
##          NA),                              
##         c(NA}               0.3369803   154
## [755]  { "report",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [756]  { "bushs",                          
##          NA),                              
##         c(NA}               0.3632385   166
## [757]  { "million",                        
##          NA),                              
##         c(NA}               0.3304158   151
## [758]  { "lead",                           
##          NA),                              
##         c(NA}               0.3566740   163
## [759]  { "general",                        
##          NA),                              
##         c(NA}               0.4113786   188
## [760]  { "numbers",                        
##          NA),                              
##         c(NA}               0.3391685   155
## [761]  { "american",                       
##          NA),                              
##         c(NA}               0.3041575   139
## [762]  { "campaign",                       
##          NA),                              
##         c(NA}               0.4091904   187
## [763]  { "voters",                         
##          NA),                              
##         c(NA}               0.3894967   178
## [764]  { "polls",                          
##          NA),                              
##         c(NA}               0.3938731   180
## [765]  { 
## NA,                             
##          NA),                              
##         c(NA}               0.8446389   386
## [766]  { NA,                               
##          NA),                              
##         c(NA}               0.8446389   386
## [767]  { "people",                         
##          NA),                              
##         c(NA}               0.4310722   197
## [768]  { 
## NA,                             
##          "important",                      
##          NA)}               0.3632385   166
## [769]  { "important",                      
##          NA,                               
##          NA)}               0.3632385   166
## [770]  { "media",                          
##          "vote",                           
##          NA)}               0.3041575   139
## [771]  { "bushs",                          
##          "media",                          
##          NA)}               0.3019694   138
## [772]  { "general",                        
##          "media",                          
##          NA)}               0.3282276   150
## [773]  { "campaign",                       
##          "media",                          
##          NA)}               0.3150985   144
## [774]  { "media",                          
##          "voters",                         
##          NA)}               0.3085339   141
## [775]  { "media",                          
##          "polls",                          
##          NA)}               0.3129103   143
## [776]  { 
## NA,                             
##          "media",                          
##          NA)}               0.3741794   171
## [777]  { "media",                          
##          NA,                               
##          NA)}               0.3741794   171
## [778]  { "media",                          
##          "people",                         
##          NA)}               0.3260394   149
## [779]  { "bushs",                          
##          "national",                       
##          NA)}               0.3019694   138
## [780]  { "general",                        
##          "national",                       
##          NA)}               0.3150985   144
## [781]  { "campaign",                       
##          "national",                       
##          NA)}               0.3063457   140
## [782]  { "national",                       
##          "voters",                         
##          NA)}               0.3085339   141
## [783]  { "national",                       
##          "polls",                          
##          NA)}               0.3107221   142
## [784]  { 
## NA,                             
##          "national",                       
##          NA)}               0.3391685   155
## [785]  { "national",                       
##          NA,                               
##          NA)}               0.3391685   155
## [786]  { "national",                       
##          "people",                         
##          NA)}               0.3172867   145
## [787]  { 
## NA,                             
##          "put",                            
##          NA)}               0.3238512   148
## [788]  { "put",                            
##          NA,                               
##          NA)}               0.3238512   148
## [789]  { 
## NA,                             
##          "elections",                      
##          NA)}               0.3085339   141
## [790]  { "elections",                      
##          NA,                               
##          NA)}               0.3085339   141
## [791]  { 
## NA,                             
##          "candidates",                     
##          NA)}               0.3172867   145
## [792]  { "candidates",                     
##          NA,                               
##          NA)}               0.3172867   145
## [793]  { "candidates",                     
##          "people",                         
##          NA)}               0.3041575   139
## [794]  { 
## NA,                             
##          "meteor",                         
##          NA)}               0.3129103   143
## [795]  { "meteor",                         
##          NA,                               
##          NA)}               0.3129103   143
## [796]  { 
## NA,                             
##          "military",                       
##          NA)}               0.3107221   142
## [797]  { "military",                       
##          NA,                               
##          NA)}               0.3107221   142
## [798]  { "bushs",                          
##          "vote",                           
##          NA)}               0.3019694   138
## [799]  { "general",                        
##          "vote",                           
##          NA)}               0.3238512   148
## [800]  { "campaign",                       
##          "vote",                           
##          NA)}               0.3172867   145
## [801]  { "vote",                           
##          "voters",                         
##          NA)}               0.3085339   141
## [802]  { "polls",                          
##          "vote",                           
##          NA)}               0.3216630   147
## [803]  { 
## NA,                             
##          "vote",                           
##          NA)}               0.3369803   154
## [804]  { "vote",                           
##          NA,                               
##          NA)}               0.3369803   154
## [805]  { "people",                         
##          "vote",                           
##          NA)}               0.3216630   147
## [806]  { 
## NA,                             
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## [807]  { "report",                         
##          NA,                               
##          NA)}               0.3085339   141
## [808]  { "bushs",                          
##          "general",                        
##          NA)}               0.3194748   146
## [809]  { "bushs",                          
##          "campaign",                       
##          NA)}               0.3150985   144
## [810]  { "bushs",                          
##          "voters",                         
##          NA)}               0.3129103   143
## [811]  { "bushs",                          
##          "polls",                          
##          NA)}               0.3260394   149
## [812]  { 
## NA,                             
##          "bushs",                          
##          NA)}               0.3632385   166
## [813]  { "bushs",                          
##          NA,                               
##          NA)}               0.3632385   166
## [814]  { "bushs",                          
##          "people",                         
##          NA)}               0.3194748   146
## [815]  { 
## NA,                             
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## [816]  { "million",                        
##          NA,                               
##          NA)}               0.3304158   151
## [817]  { "million",                        
##          "people",                         
##          NA)}               0.3041575   139
## [818]  { "general",                        
##          "lead",                           
##          NA)}               0.3150985   144
## [819]  { "campaign",                       
##          "lead",                           
##          NA)}               0.3129103   143
## [820]  { "lead",                           
##          "voters",                         
##          NA)}               0.3063457   140
## [821]  { "lead",                           
##          "polls",                          
##          NA)}               0.3172867   145
## [822]  { 
## NA,                             
##          "lead",                           
##          NA)}               0.3566740   163
## [823]  { "lead",                           
##          NA,                               
##          NA)}               0.3566740   163
## [824]  { "lead",                           
##          "people",                         
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##          NA)}               0.3413567   156
## [826]  { "general",                        
##          "voters",                         
##          NA)}               0.3260394   149
## [827]  { "general",                        
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## [828]  { 
## NA,                             
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##          NA)}               0.4113786   188
## [829]  { "general",                        
##          NA,                               
##          NA)}               0.4113786   188
## [830]  { "general",                        
##          "people",                         
##          NA)}               0.3479212   159
## [831]  { "numbers",                        
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##          NA)}               0.3019694   138
## [832]  { 
## NA,                             
##          "numbers",                        
##          NA)}               0.3391685   155
## [833]  { "numbers",                        
##          NA,                               
##          NA)}               0.3391685   155
## [834]  { "numbers",                        
##          "people",                         
##          NA)}               0.3107221   142
## [835]  { 
## NA,                             
##          "american",                       
##          NA)}               0.3041575   139
## [836]  { "american",                       
##          NA,                               
##          NA)}               0.3041575   139
## [837]  { "campaign",                       
##          "voters",                         
##          NA)}               0.3391685   155
## [838]  { "campaign",                       
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## [839]  { 
## NA,                             
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##          NA)}               0.4091904   187
## [840]  { "campaign",                       
##          NA,                               
##          NA)}               0.4091904   187
## [841]  { "campaign",                       
##          "people",                         
##          NA)}               0.3698031   169
## [842]  { "polls",                          
##          "voters",                         
##          NA)}               0.3435449   157
## [843]  { 
## NA,                             
##          "voters",                         
##          NA)}               0.3894967   178
## [844]  { "voters",                         
##          NA,                               
##          NA)}               0.3894967   178
## [845]  { "people",                         
##          "voters",                         
##          NA)}               0.3522976   161
## [846]  { 
## NA,                             
##          "polls",                          
##          NA)}               0.3938731   180
## [847]  { "polls",                          
##          NA,                               
##          NA)}               0.3938731   180
## [848]  { "people",                         
##          "polls",                          
##          NA)}               0.3610503   165
## [849]  { 
## NA,                             
##          NA,                               
##          NA)}               0.8446389   386
## [850]  { 
## NA,                             
##          "people",                         
##          NA)}               0.4310722   197
## [851]  { "people",                         
##          NA,                               
##          NA)}               0.4310722   197
## [852]  { 
## NA,                             
##          "called",                         
##          NA}                0.3019694   138
## [853]  { "general",                        
##          "labor",                          
##         c(NA}               0.3063457   140
## [854]  { "campaign",                       
##          "labor",                          
##         c(NA}               0.3107221   142
## [855]  { "labor",                          
##          "polls",                          
##         c(NA}               0.3150985   144
## [856]  { 
## NA,                             
##          "labor",                          
##         c(NA}               0.3916849   179
## [857]  { "labor",                          
##          NA,                               
##         c(NA}               0.3916849   179
## [858]  { "labor",                          
##          "people",                         
##         c(NA}               0.3282276   150
## [859]  { 
## NA,                             
##          "important",                      
##          "labor"}           0.3085339   141
## [860]  { "important",                      
##          "labor",                          
##          NA}                0.3085339   141
## [861]  { 
## NA,                             
##          "labor",                          
##          "lead"}            0.3085339   141
## [862]  { "labor",                          
##          "lead",                           
##          NA}                0.3085339   141
## [863]  { 
## NA,                             
##          "general",                        
##          "labor"}           0.3085339   141
## [864]  { "general",                        
##          "labor",                          
##          NA}                0.3085339   141
## [865]  { 
## NA,                             
##          "labor",                          
##          "numbers"}         0.3172867   145
## [866]  { "labor",                          
##          "numbers",                        
##          NA}                0.3172867   145
## [867]  { "campaign",                       
##          "labor",                          
##          "voters"}          0.3019694   138
## [868]  { "campaign",                       
##          "labor",                          
##          "polls"}           0.3150985   144
## [869]  { 
## NA,                             
##          "campaign",                       
##          "labor"}           0.3457330   158
## [870]  { "campaign",                       
##          "labor",                          
##          NA}                0.3457330   158
## [871]  { "campaign",                       
##          "labor",                          
##          "people"}          0.3260394   149
## [872]  { "labor",                          
##          "polls",                          
##          "voters"}          0.3150985   144
## [873]  { 
## NA,                             
##          "labor",                          
##          "voters"}          0.3391685   155
## [874]  { "labor",                          
##          "voters",                         
##          NA}                0.3391685   155
## [875]  { "labor",                          
##          "people",                         
##          "voters"}          0.3216630   147
## [876]  { 
## NA,                             
##          "labor",                          
##          "polls"}           0.3544858   162
## [877]  { "labor",                          
##          "polls",                          
##          NA}                0.3544858   162
## [878]  { "labor",                          
##          "people",                         
##          "polls"}           0.3369803   154
## [879]  { 
## NA,                             
##          "labor",                          
##          NA}                0.4310722   197
## [880]  { 
## NA,                             
##          "labor",                          
##          "people"}          0.3676149   168
## [881]  { "labor",                          
##          "people",                         
##          NA}                0.3676149   168
## [882]  { 
## NA,                             
##          "talking",                        
##          NA}                0.3129103   143
## [883]  { 
## NA,                             
##          "security",                       
##         c(NA}               0.3260394   149
## [884]  { "security",                       
##          NA,                               
##         c(NA}               0.3260394   149
## [885]  { 
## NA,                             
##          "security",                       
##          "voters"}          0.3172867   145
## [886]  { "security",                       
##          "voters",                         
##          NA}                0.3172867   145
## [887]  { 
## NA,                             
##          "polls",                          
##          "security"}        0.3085339   141
## [888]  { "polls",                          
##          "security",                       
##          NA}                0.3085339   141
## [889]  { 
## NA,                             
##          "security",                       
##          NA}                0.3610503   165
## [890]  { 
## NA,                             
##          "people",                         
##          "security"}        0.3238512   148
## [891]  { "people",                         
##          "security",                       
##          NA}                0.3238512   148
## [892]  { 
## NA,                             
##          "north",                          
##          NA}                0.3107221   142
## [893]  { 
## NA,                             
##          "zogby",                          
##          NA}                0.3216630   147
## [894]  { "people",                         
##          "zogby",                          
##          NA}                0.3041575   139
## [895]  { 
## NA,                             
##          "force",                          
##         c(NA}               0.3172867   145
## [896]  { "force",                          
##          NA,                               
##         c(NA}               0.3172867   145
## [897]  { "campaign",                       
##          "force",                          
##          "voters"}          0.3041575   139
## [898]  { "campaign",                       
##          "force",                          
##          "polls"}           0.3150985   144
## [899]  { 
## NA,                             
##          "campaign",                       
##          "force"}           0.3304158   151
## [900]  { "campaign",                       
##          "force",                          
##          NA}                0.3369803   154
## [901]  { "campaign",                       
##          "force",                          
##          "people"}          0.3150985   144
## [902]  { "force",                          
##          "polls",                          
##          "voters"}          0.3085339   141
## [903]  { 
## NA,                             
##          "force",                          
##          "voters"}          0.3172867   145
## [904]  { "force",                          
##          "voters",                         
##          NA}                0.3216630   147
## [905]  { 
## NA,                             
##          "force",                          
##          "polls"}           0.3282276   150
## [906]  { "force",                          
##          "polls",                          
##          NA}                0.3347921   153
## [907]  { "force",                          
##          "people",                         
##          "polls"}           0.3129103   143
## [908]  { 
## NA,                             
##          "force",                          
##          NA}                0.3544858   162
## [909]  { 
## NA,                             
##          "force",                          
##          "people"}          0.3238512   148
## [910]  { "force",                          
##          "people",                         
##          NA}                0.3304158   151
## [911]  { 
## NA,                             
##          "attack",                         
##          NA}                0.3413567   156
## [912]  { 
## NA,                             
##          "attack",                         
##          "people"}          0.3172867   145
## [913]  { "attack",                         
##          "people",                         
##          NA}                0.3194748   146
## [914]  { 
## NA,                             
##          "hard",                           
##         c(NA}               0.3260394   149
## [915]  { "hard",                           
##          NA,                               
##         c(NA}               0.3260394   149
## [916]  { 
## NA,                             
##          "hard",                           
##          NA}                0.3260394   149
## [917]  { 
## NA,                             
##          "campaign",                       
##          "watch"}           0.3019694   138
## [918]  { "campaign",                       
##          "watch",                          
##          NA}                0.3107221   142
## [919]  { "voters",                         
##          "watch",                          
##          NA}                0.3041575   139
## [920]  { 
## NA,                             
##          "polls",                          
##          "watch"}           0.3041575   139
## [921]  { "polls",                          
##          "watch",                          
##          NA}                0.3129103   143
## [922]  { "people",                         
##          "polls",                          
##          "watch"}           0.3041575   139
## [923]  { 
## NA,                             
##          "watch",                          
##          NA}                0.3369803   154
## [924]  { 
## NA,                             
##          "people",                         
##          "watch"}           0.3107221   142
## [925]  { "people",                         
##          "watch",                          
##          NA}                0.3194748   146
## [926]  { 
## NA,                             
##          "campaign",                       
##          "congress"}        0.3019694   138
## [927]  { "campaign",                       
##          "congress",                       
##          NA}                0.3107221   142
## [928]  { "congress",                       
##          "polls",                          
##          NA}                0.3063457   140
## [929]  { 
## NA,                             
##          "congress",                       
##          NA}                0.3413567   156
## [930]  { 
## NA,                             
##          "congress",                       
##          "people"}          0.3019694   138
## [931]  { "congress",                       
##          "people",                         
##          NA}                0.3107221   142
## [932]  { 
## NA,                             
##          "victory",                        
##         c(NA}               0.3085339   141
## [933]  { "victory",                        
##          NA,                               
##         c(NA}               0.3085339   141
## [934]  { 
## NA,                             
##          "campaign",                       
##          "victory"}         0.3041575   139
## [935]  { "campaign",                       
##          "victory",                        
##          NA}                0.3129103   143
## [936]  { "campaign",                       
##          "people",                         
##          "victory"}         0.3041575   139
## [937]  { 
## NA,                             
##          "victory",                        
##          "voters"}          0.3129103   143
## [938]  { "victory",                        
##          "voters",                         
##          NA}                0.3172867   145
## [939]  { "people",                         
##          "victory",                        
##          "voters"}          0.3019694   138
## [940]  { 
## NA,                             
##          "polls",                          
##          "victory"}         0.3194748   146
## [941]  { "polls",                          
##          "victory",                        
##          NA}                0.3282276   150
## [942]  { "people",                         
##          "polls",                          
##          "victory"}         0.3129103   143
## [943]  { 
## NA,                             
##          "victory",                        
##          NA}                0.3522976   161
## [944]  { 
## NA,                             
##          "people",                         
##          "victory"}         0.3282276   150
## [945]  { "people",                         
##          "victory",                        
##          NA}                0.3369803   154
## [946]  { "polls",                          
##          "reason",                         
##          NA}                0.3019694   138
## [947]  { 
## NA,                             
##          "reason",                         
##          NA}                0.3369803   154
## [948]  { 
## NA,                             
##          "people",                         
##          "reason"}          0.3150985   144
## [949]  { "people",                         
##          "reason",                         
##          NA}                0.3194748   146
## [950]  { "general",                        
##          "money",                          
##         c(NA}               0.3150985   144
## [951]  { 
## NA,                             
##          "money",                          
##         c(NA}               0.3216630   147
## [952]  { "money",                          
##          NA,                               
##         c(NA}               0.3216630   147
## [953]  { "money",                          
##          "people",                         
##         c(NA}               0.3150985   144
## [954]  { "media",                          
##          "money",                          
##          "vote"}            0.3107221   142
## [955]  { "general",                        
##          "media",                          
##          "money"}           0.3260394   149
## [956]  { "media",                          
##          "money",                          
##          "people"}          0.3063457   140
## [957]  { "money",                          
##          "national",                       
##          "vote"}            0.3019694   138
## [958]  { "general",                        
##          "money",                          
##          "national"}        0.3129103   143
## [959]  { "elections",                      
##          "general",                        
##          "money"}           0.3019694   138
## [960]  { "general",                        
##          "money",                          
##          "vote"}            0.3282276   150
## [961]  { 
## NA,                             
##          "money",                          
##          "vote"}            0.3019694   138
## [962]  { "money",                          
##          "vote",                           
##          NA}                0.3019694   138
## [963]  { "money",                          
##          "people",                         
##          "vote"}            0.3129103   143
## [964]  { "bushs",                          
##          "general",                        
##          "money"}           0.3019694   138
## [965]  { "general",                        
##          "lead",                           
##          "money"}           0.3041575   139
## [966]  { "general",                        
##          "money",                          
##          "polls"}           0.3019694   138
## [967]  { 
## NA,                             
##          "general",                        
##          "money"}           0.3172867   145
## [968]  { "general",                        
##          "money",                          
##          NA}                0.3172867   145
## [969]  { "general",                        
##          "money",                          
##          "people"}          0.3304158   151
## [970]  { 
## NA,                             
##          "money",                          
##          NA}                0.3238512   148
## [971]  { 
## NA,                             
##          "money",                          
##          "people"}          0.3172867   145
## [972]  { "money",                          
##          "people",                         
##          NA}                0.3172867   145
## [973]  { 
## NA,                             
##          "find",                           
##         c(NA}               0.3063457   140
## [974]  { "find",                           
##          NA,                               
##         c(NA}               0.3063457   140
## [975]  { 
## NA,                             
##          "find",                           
##          "voters"}          0.3041575   139
## [976]  { "find",                           
##          "voters",                         
##          NA}                0.3041575   139
## [977]  { 
## NA,                             
##          "find",                           
##          "polls"}           0.3063457   140
## [978]  { "find",                           
##          "polls",                          
##          NA}                0.3063457   140
## [979]  { 
## NA,                             
##          "find",                           
##          NA}                0.3544858   162
## [980]  { 
## NA,                             
##          "find",                           
##          "people"}          0.3194748   146
## [981]  { "find",                           
##          "people",                         
##          NA}                0.3194748   146
## [982]  { 
## NA,                             
##          "weve",                           
##          NA}                0.3085339   141
## [983]  { "people",                         
##          "weve",                           
##          NA}                0.3019694   138
## [984]  { 
## NA,                             
##          "record",                         
##          NA}                0.3019694   138
## [985]  { 
## NA,                             
##          "found",                          
##          NA}                0.3085339   141
## [986]  { 
## NA,                             
##          "whats",                          
##         c(NA}               0.3041575   139
## [987]  { "whats",                          
##          NA,                               
##         c(NA}               0.3041575   139
## [988]  { 
## NA,                             
##          "important",                      
##         c(NA}               0.3676149   168
## [989]  { "important",                      
##          NA,                               
##         c(NA}               0.3676149   168
## [990]  { "important",                      
##          "people",                         
##         c(NA}               0.3019694   138
## [991]  { "media",                          
##          "national",                       
##         c(NA}               0.3282276   150
## [992]  { "elections",                      
##          "media",                          
##         c(NA}               0.3150985   144
## [993]  { "media",                          
##          "vote",                           
##         c(NA}               0.3326039   152
## [994]  { "bushs",                          
##          "media",                          
##         c(NA}               0.3238512   148
## [995]  { "lead",                           
##          "media",                          
##         c(NA}               0.3172867   145
## [996]  { "general",                        
##          "media",                          
##         c(NA}               0.3566740   163
## [997]  { "media",                          
##          "numbers",                        
##         c(NA}               0.3107221   142
## [998]  { "campaign",                       
##          "media",                          
##         c(NA}               0.3238512   148
## [999]  { "media",                          
##          "voters",                         
##         c(NA}               0.3282276   150
## [1000] { "media",                          
##          "polls",                          
##         c(NA}               0.3260394   149
## [1001] { 
## NA,                             
##          "media",                          
##         c(NA}               0.4026258   184
## [1002] { "media",                          
##          NA,                               
##         c(NA}               0.4026258   184
## [1003] { "media",                          
##          "people",                         
##         c(NA}               0.3544858   162
## [1004] { "elections",                      
##          "national",                       
##         c(NA}               0.3107221   142
## [1005] { "national",                       
##          "vote",                           
##         c(NA}               0.3282276   150
## [1006] { "bushs",                          
##          "national",                       
##         c(NA}               0.3238512   148
## [1007] { "lead",                           
##          "national",                       
##         c(NA}               0.3129103   143
## [1008] { "general",                        
##          "national",                       
##         c(NA}               0.3457330   158
## [1009] { "national",                       
##          "numbers",                        
##         c(NA}               0.3041575   139
## [1010] { "campaign",                       
##          "national",                       
##         c(NA}               0.3150985   144
## [1011] { "national",                       
##          "voters",                         
##         c(NA}               0.3304158   151
## [1012] { "national",                       
##          "polls",                          
##         c(NA}               0.3260394   149
## [1013] { 
## NA,                             
##          "national",                       
##         c(NA}               0.3698031   169
## [1014] { "national",                       
##          NA,                               
##         c(NA}               0.3698031   169
## [1015] { "national",                       
##          "people",                         
##         c(NA}               0.3479212   159
## [1016] { 
## NA,                             
##          "place",                          
##         c(NA}               0.3085339   141
## [1017] { "place",                          
##          NA,                               
##         c(NA}               0.3085339   141
## [1018] { 
## NA,                             
##          "put",                            
##         c(NA}               0.3347921   153
## [1019] { "put",                            
##          NA,                               
##         c(NA}               0.3347921   153
## [1020] { "elections",                      
##          "vote",                           
##         c(NA}               0.3129103   143
## [1021] { "bushs",                          
##          "elections",                      
##         c(NA}               0.3085339   141
## [1022] { "elections",                      
##          "lead",                           
##         c(NA}               0.3085339   141
## [1023] { "elections",                      
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## [1024] { "elections",                      
##          "voters",                         
##         c(NA}               0.3063457   140
## [1025] { "elections",                      
##          "polls",                          
##         c(NA}               0.3150985   144
## [1026] { 
## NA,                             
##          "elections",                      
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## [1027] { "elections",                      
##          NA,                               
##         c(NA}               0.3391685   155
## [1028] { "elections",                      
##          "people",                         
##         c(NA}               0.3304158   151
## [1029] { "candidates",                     
##          "general",                        
##         c(NA}               0.3019694   138
## [1030] { "campaign",                       
##          "candidates",                     
##         c(NA}               0.3019694   138
## [1031] { 
## NA,                             
##          "candidates",                     
##         c(NA}               0.3369803   154
## [1032] { "candidates",                     
##          NA,                               
##         c(NA}               0.3369803   154
## [1033] { "candidates",                     
##          "people",                         
##         c(NA}               0.3216630   147
## [1034] { 
## NA,                             
##          "meteor",                         
##         c(NA}               0.3260394   149
## [1035] { "meteor",                         
##          NA,                               
##         c(NA}               0.3260394   149
## [1036] { "meteor",                         
##          "people",                         
##         c(NA}               0.3019694   138
## [1037] { 
## NA,                             
##          "military",                       
##         c(NA}               0.3260394   149
## [1038] { "military",                       
##          NA,                               
##         c(NA}               0.3260394   149
## [1039] { "military",                       
##          "people",                         
##         c(NA}               0.3107221   142
## [1040] { "bushs",                          
##          "vote",                           
##         c(NA}               0.3238512   148
## [1041] { "lead",                           
##          "vote",                           
##         c(NA}               0.3172867   145
## [1042] { "general",                        
##          "vote",                           
##         c(NA}               0.3544858   162
## [1043] { "numbers",                        
##          "vote",                           
##         c(NA}               0.3085339   141
## [1044] { "campaign",                       
##          "vote",                           
##         c(NA}               0.3260394   149
## [1045] { "vote",                           
##          "voters",                         
##         c(NA}               0.3304158   151
## [1046] { "polls",                          
##          "vote",                           
##         c(NA}               0.3369803   154
## [1047] { 
## NA,                             
##          "vote",                           
##         c(NA}               0.3676149   168
## [1048] { "vote",                           
##          NA,                               
##         c(NA}               0.3676149   168
## [1049] { "people",                         
##          "vote",                           
##         c(NA}               0.3522976   161
## [1050] { 
## NA,                             
##          "report",                         
##         c(NA}               0.3150985   144
## [1051] { "report",                         
##          NA,                               
##         c(NA}               0.3150985   144
## [1052] { "bushs",                          
##          "lead",                           
##         c(NA}               0.3107221   142
## [1053] { "bushs",                          
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##         c(NA}               0.3413567   156
## [1054] { "bushs",                          
##          "campaign",                       
##         c(NA}               0.3238512   148
## [1055] { "bushs",                          
##          "voters",                         
##         c(NA}               0.3260394   149
## [1056] { "bushs",                          
##          "polls",                          
##         c(NA}               0.3347921   153
## [1057] { 
## NA,                             
##          "bushs",                          
##         c(NA}               0.3851204   176
## [1058] { "bushs",                          
##          NA,                               
##         c(NA}               0.3851204   176
## [1059] { "bushs",                          
##          "people",                         
##         c(NA}               0.3413567   156
## [1060] { "million",                        
##          "polls",                          
##         c(NA}               0.3041575   139
## [1061] { 
## NA,                             
##          "million",                        
##         c(NA}               0.3588621   164
## [1062] { "million",                        
##          NA,                               
##         c(NA}               0.3588621   164
## [1063] { "million",                        
##          "people",                         
##         c(NA}               0.3326039   152
## [1064] { "dem",                            
##          "general",                        
##         c(NA}               0.3041575   139
## [1065] { 
## NA,                             
##          "dem",                            
##         c(NA}               0.3260394   149
## [1066] { "dem",                            
##          NA,                               
##         c(NA}               0.3260394   149
## [1067] { "dem",                            
##          "people",                         
##         c(NA}               0.3085339   141
## [1068] { "general",                        
##          "lead",                           
##         c(NA}               0.3369803   154
## [1069] { "lead",                           
##          "numbers",                        
##         c(NA}               0.3085339   141
## [1070] { "campaign",                       
##          "lead",                           
##         c(NA}               0.3216630   147
## [1071] { "lead",                           
##          "voters",                         
##         c(NA}               0.3194748   146
## [1072] { "lead",                           
##          "polls",                          
##         c(NA}               0.3260394   149
## [1073] { 
## NA,                             
##          "lead",                           
##         c(NA}               0.3785558   173
## [1074] { "lead",                           
##          NA,                               
##         c(NA}               0.3785558   173
## [1075] { "lead",                           
##          "people",                         
##         c(NA}               0.3479212   159
## [1076] { "general",                        
##          "races",                          
##         c(NA}               0.3085339   141
## [1077] { "general",                        
##          "numbers",                        
##         c(NA}               0.3216630   147
## [1078] { "american",                       
##          "general",                        
##         c(NA}               0.3085339   141
## [1079] { "general",                        
##          "iraq",                           
##         c(NA}               0.3019694   138
## [1080] { "campaign",                       
##          "general",                        
##         c(NA}               0.3501094   160
## [1081] { "general",                        
##          "voters",                         
##         c(NA}               0.3479212   159
## [1082] { "general",                        
##          "polls",                          
##         c(NA}               0.3501094   160
## [1083] { 
## NA,                             
##          "general",                        
##         c(NA}               0.4420131   202
## [1084] { "general",                        
##          "war",                            
##         c(NA}               0.3063457   140
## [1085] { "general",                        
##          NA,                               
##         c(NA}               0.4420131   202
## [1086] { "general",                        
##          "people",                         
##         c(NA}               0.3785558   173
## [1087] { 
## NA,                             
##          "races",                          
##         c(NA}               0.3129103   143
## [1088] { "races",                          
##          NA,                               
##         c(NA}               0.3129103   143
## [1089] { "people",                         
##          "races",                          
##         c(NA}               0.3085339   141
## [1090] { "campaign",                       
##          "numbers",                        
##         c(NA}               0.3063457   140
## [1091] { "numbers",                        
##          "voters",                         
##         c(NA}               0.3150985   144
## [1092] { "numbers",                        
##          "polls",                          
##         c(NA}               0.3172867   145
## [1093] { 
## NA,                             
##          "numbers",                        
##         c(NA}               0.3698031   169
## [1094] { "numbers",                        
##          NA,                               
##         c(NA}               0.3698031   169
## [1095] { "numbers",                        
##          "people",                         
##         c(NA}               0.3413567   156
## [1096] { 
## NA,                             
##          "american",                       
##         c(NA}               0.3347921   153
## [1097] { "american",                       
##          NA,                               
##         c(NA}               0.3347921   153
## [1098] { "american",                       
##          "people",                         
##         c(NA}               0.3129103   143
## [1099] { 
## NA,                             
##          "iraq",                           
##         c(NA}               0.3063457   140
## [1100] { "iraq",                           
##          NA,                               
##         c(NA}               0.3063457   140
## [1101] { "iraq",                           
##          "people",                         
##         c(NA}               0.3019694   138
## [1102] { "campaign",                       
##          "voters",                         
##         c(NA}               0.3413567   156
## [1103] { "campaign",                       
##          "polls",                          
##         c(NA}               0.3544858   162
## [1104] { 
## NA,                             
##          "campaign",                       
##         c(NA}               0.4201313   192
## [1105] { "campaign",                       
##          NA,                               
##         c(NA}               0.4201313   192
## [1106] { "campaign",                       
##          "people",                         
##         c(NA}               0.3785558   173
## [1107] { "polls",                          
##          "voters",                         
##         c(NA}               0.3522976   161
## [1108] { 
## NA,                             
##          "voters",                         
##         c(NA}               0.4113786   188
## [1109] { "voters",                         
##          NA,                               
##         c(NA}               0.4113786   188
## [1110] { "people",                         
##          "voters",                         
##         c(NA}               0.3741794   171
## [1111] { 
## NA,                             
##          "republicans",                    
##         c(NA}               0.3107221   142
## [1112] { "republicans",                    
##          NA,                               
##         c(NA}               0.3107221   142
## [1113] { 
## NA,                             
##          "polls",                          
##         c(NA}               0.4091904   187
## [1114] { "polls",                          
##          NA,                               
##         c(NA}               0.4091904   187
## [1115] { "people",                         
##          "polls",                          
##         c(NA}               0.3763676   172
## [1116] { 
## NA,                             
##          "war",                            
##         c(NA}               0.3150985   144
## [1117] { 
## NA,                             
##          NA,                               
##         c(NA}               0.8774617   401
## [1118] { 
## NA,                             
##          "people",                         
##         c(NA}               0.4617068   211
## [1119] { "war",                            
##          NA,                               
##         c(NA}               0.3150985   144
## [1120] { "people",                         
##          "war",                            
##         c(NA}               0.3107221   142
## [1121] { "people",                         
##          NA,                               
##         c(NA}               0.4617068   211
## [1122] { "voters",                         
##          "whats",                          
##          NA}                0.3085339   141
## [1123] { 
## NA,                             
##          "polls",                          
##          "whats"}           0.3041575   139
## [1124] { "polls",                          
##          "whats",                          
##          NA}                0.3129103   143
## [1125] { 
## NA,                             
##          "whats",                          
##          NA}                0.3522976   161
## [1126] { 
## NA,                             
##          "people",                         
##          "whats"}           0.3063457   140
## [1127] { "people",                         
##          "whats",                          
##          NA}                0.3150985   144
## [1128] { "iowa",                           
##          "people",                         
##          NA}                0.3019694   138
## [1129] { 
## NA,                             
##          "important",                      
##          "numbers"}         0.3041575   139
## [1130] { "important",                      
##          "numbers",                        
##          NA}                0.3129103   143
## [1131] { "campaign",                       
##          "important",                      
##          "voters"}          0.3107221   142
## [1132] { "campaign",                       
##          "important",                      
##          "polls"}           0.3282276   150
## [1133] { 
## NA,                             
##          "campaign",                       
##          "important"}       0.3435449   157
## [1134] { "campaign",                       
##          "important",                      
##          NA}                0.3544858   162
## [1135] { "campaign",                       
##          "important",                      
##          "people"}          0.3369803   154
## [1136] { "important",                      
##          "polls",                          
##          "voters"}          0.3216630   147
## [1137] { 
## NA,                             
##          "important",                      
##          "voters"}          0.3369803   154
## [1138] { "important",                      
##          "voters",                         
##          NA}                0.3457330   158
## [1139] { "important",                      
##          "people",                         
##          "voters"}          0.3260394   149
## [1140] { 
## NA,                             
##          "important",                      
##          "polls"}           0.3479212   159
## [1141] { "important",                      
##          "polls",                          
##          NA}                0.3588621   164
## [1142] { "important",                      
##          "people",                         
##          "polls"}           0.3391685   155
## [1143] { 
## NA,                             
##          "important",                      
##          NA}                0.4201313   192
## [1144] { 
## NA,                             
##          "important",                      
##          "people"}          0.3522976   161
## [1145] { "important",                      
##          "people",                         
##          NA}                0.3632385   166
## [1146] { "elections",                      
##          "media",                          
##          "national"}        0.3216630   147
## [1147] { "media",                          
##          "national",                       
##          "vote"}            0.3304158   151
## [1148] { "bushs",                          
##          "media",                          
##          "national"}        0.3172867   145
## [1149] { "lead",                           
##          "media",                          
##          "national"}        0.3041575   139
## [1150] { "general",                        
##          "media",                          
##          "national"}        0.3435449   157
## [1151] { "media",                          
##          "national",                       
##          "voters"}          0.3019694   138
## [1152] { "media",                          
##          "national",                       
##          "polls"}           0.3019694   138
## [1153] { 
## NA,                             
##          "media",                          
##          "national"}        0.3282276   150
## [1154] { "media",                          
##          "national",                       
##          NA}                0.3282276   150
## [1155] { "media",                          
##          "national",                       
##          "people"}          0.3260394   149
## [1156] { "elections",                      
##          "media",                          
##          "vote"}            0.3304158   151
## [1157] { "bushs",                          
##          "elections",                      
##          "media"}           0.3150985   144
## [1158] { "elections",                      
##          "lead",                           
##          "media"}           0.3107221   142
## [1159] { "elections",                      
##          "general",                        
##          "media"}           0.3347921   153
## [1160] { "elections",                      
##          "media",                          
##          "polls"}           0.3019694   138
## [1161] { 
## NA,                             
##          "elections",                      
##          "media"}           0.3150985   144
## [1162] { "elections",                      
##          "media",                          
##          NA}                0.3150985   144
## [1163] { "elections",                      
##          "media",                          
##          "people"}          0.3238512   148
## [1164] { "bushs",                          
##          "media",                          
##          "vote"}            0.3282276   150
## [1165] { "lead",                           
##          "media",                          
##          "vote"}            0.3129103   143
## [1166] { "general",                        
##          "media",                          
##          "vote"}            0.3566740   163
## [1167] { "campaign",                       
##          "media",                          
##          "vote"}            0.3063457   140
## [1168] { "media",                          
##          "polls",                          
##          "vote"}            0.3129103   143
## [1169] { 
## NA,                             
##          "media",                          
##          "vote"}            0.3326039   152
## [1170] { "media",                          
##          "vote",                           
##          NA}                0.3326039   152
## [1171] { "media",                          
##          "people",                         
##          "vote"}            0.3369803   154
## [1172] { "bushs",                          
##          "lead",                           
##          "media"}           0.3041575   139
## [1173] { "bushs",                          
##          "general",                        
##          "media"}           0.3347921   153
## [1174] { "bushs",                          
##          "campaign",                       
##          "media"}           0.3019694   138
## [1175] { "bushs",                          
##          "media",                          
##          "polls"}           0.3107221   142
## [1176] { 
## NA,                             
##          "bushs",                          
##          "media"}           0.3238512   148
## [1177] { "bushs",                          
##          "media",                          
##          NA}                0.3238512   148
## [1178] { "bushs",                          
##          "media",                          
##          "people"}          0.3238512   148
## [1179] { "general",                        
##          "lead",                           
##          "media"}           0.3260394   149
## [1180] { 
## NA,                             
##          "lead",                           
##          "media"}           0.3172867   145
## [1181] { "lead",                           
##          "media",                          
##          NA}                0.3172867   145
## [1182] { "lead",                           
##          "media",                          
##          "people"}          0.3194748   146
## [1183] { "campaign",                       
##          "general",                        
##          "media"}           0.3260394   149
## [1184] { "general",                        
##          "media",                          
##          "voters"}          0.3172867   145
## [1185] { "general",                        
##          "media",                          
##          "polls"}           0.3238512   148
## [1186] { 
## NA,                             
##          "general",                        
##          "media"}           0.3566740   163
## [1187] { "general",                        
##          "media",                          
##          "war"}             0.3041575   139
## [1188] { "general",                        
##          "media",                          
##          NA}                0.3566740   163
## [1189] { "general",                        
##          "media",                          
##          "people"}          0.3566740   163
## [1190] { 
## NA,                             
##          "media",                          
##          "numbers"}         0.3107221   142
## [1191] { "media",                          
##          "numbers",                        
##          NA}                0.3107221   142
## [1192] { "media",                          
##          "numbers",                        
##          "people"}          0.3019694   138
## [1193] { "campaign",                       
##          "media",                          
##          "polls"}           0.3085339   141
## [1194] { 
## NA,                             
##          "campaign",                       
##          "media"}           0.3238512   148
## [1195] { "campaign",                       
##          "media",                          
##          NA}                0.3238512   148
## [1196] { "campaign",                       
##          "media",                          
##          "people"}          0.3194748   146
## [1197] { 
## NA,                             
##          "media",                          
##          "voters"}          0.3282276   150
## [1198] { "media",                          
##          "voters",                         
##          NA}                0.3282276   150
## [1199] { "media",                          
##          "people",                         
##          "voters"}          0.3172867   145
## [1200] { 
## NA,                             
##          "media",                          
##          "polls"}           0.3260394   149
## [1201] { "media",                          
##          "polls",                          
##          NA}                0.3260394   149
## [1202] { "media",                          
##          "people",                         
##          "polls"}           0.3194748   146
## [1203] { 
## NA,                             
##          "media",                          
##          NA}                0.4026258   184
## [1204] { 
## NA,                             
##          "media",                          
##          "people"}          0.3544858   162
## [1205] { "media",                          
##          "people",                         
##          "war"}             0.3019694   138
## [1206] { "media",                          
##          "people",                         
##          NA}                0.3544858   162
## [1207] { "people",                         
##          "polling",                        
##          NA}                0.3019694   138
## [1208] { 
## NA,                             
##          "making",                         
##          "polls"}           0.3085339   141
## [1209] { "making",                         
##          "polls",                          
##          NA}                0.3085339   141
## [1210] { 
## NA,                             
##          "making",                         
##          NA}                0.3326039   152
## [1211] { 
## NA,                             
##          "making",                         
##          "people"}          0.3150985   144
## [1212] { "making",                         
##          "people",                         
##          NA}                0.3150985   144
## [1213] { 
## NA,                             
##          "jan",                            
##          NA}                0.3194748   146
## [1214] { 
## NA,                             
##          "jan",                            
##          "people"}          0.3041575   139
## [1215] { "jan",                            
##          "people",                         
##          NA}                0.3129103   143
## [1216] { 
## NA,                             
##          "lets",                           
##          NA}                0.3063457   140
## [1217] { "bill",                           
##          "voters",                         
##          NA}                0.3019694   138
## [1218] { 
## NA,                             
##          "bill",                           
##          "polls"}           0.3019694   138
## [1219] { "bill",                           
##          "polls",                          
##          NA}                0.3063457   140
## [1220] { "bill",                           
##          "people",                         
##          "polls"}           0.3019694   138
## [1221] { 
## NA,                             
##          "bill",                           
##          NA}                0.3238512   148
## [1222] { 
## NA,                             
##          "bill",                           
##          "people"}          0.3194748   146
## [1223] { "bill",                           
##          "people",                         
##          NA}                0.3238512   148
## [1224] { "elections",                      
##          "national",                       
##          "vote"}            0.3216630   147
## [1225] { "bushs",                          
##          "elections",                      
##          "national"}        0.3063457   140
## [1226] { "elections",                      
##          "general",                        
##          "national"}        0.3260394   149
## [1227] { 
## NA,                             
##          "elections",                      
##          "national"}        0.3107221   142
## [1228] { "elections",                      
##          "national",                       
##          NA}                0.3107221   142
## [1229] { "elections",                      
##          "national",                       
##          "people"}          0.3150985   144
## [1230] { "bushs",                          
##          "national",                       
##          "vote"}            0.3172867   145
## [1231] { "lead",                           
##          "national",                       
##          "vote"}            0.3019694   138
## [1232] { "general",                        
##          "national",                       
##          "vote"}            0.3479212   159
## [1233] { "national",                       
##          "vote",                           
##          "voters"}          0.3063457   140
## [1234] { "national",                       
##          "polls",                          
##          "vote"}            0.3107221   142
## [1235] { 
## NA,                             
##          "national",                       
##          "vote"}            0.3326039   152
## [1236] { "national",                       
##          "vote",                           
##          NA}                0.3326039   152
## [1237] { "national",                       
##          "people",                         
##          "vote"}            0.3304158   151
## [1238] { "bushs",                          
##          "general",                        
##          "national"}        0.3282276   150
## [1239] { "bushs",                          
##          "national",                       
##          "voters"}          0.3019694   138
## [1240] { "bushs",                          
##          "national",                       
##          "polls"}           0.3085339   141
## [1241] { 
## NA,                             
##          "bushs",                          
##          "national"}        0.3238512   148
## [1242] { "bushs",                          
##          "national",                       
##          NA}                0.3238512   148
## [1243] { "bushs",                          
##          "national",                       
##          "people"}          0.3194748   146
## [1244] { "general",                        
##          "lead",                           
##          "national"}        0.3150985   144
## [1245] { 
## NA,                             
##          "lead",                           
##          "national"}        0.3129103   143
## [1246] { "lead",                           
##          "national",                       
##          NA}                0.3129103   143
## [1247] { "lead",                           
##          "national",                       
##          "people"}          0.3085339   141
## [1248] { "campaign",                       
##          "general",                        
##          "national"}        0.3129103   143
## [1249] { "general",                        
##          "national",                       
##          "voters"}          0.3194748   146
## [1250] { "general",                        
##          "national",                       
##          "polls"}           0.3194748   146
## [1251] { 
## NA,                             
##          "general",                        
##          "national"}        0.3479212   159
## [1252] { "general",                        
##          "national",                       
##          NA}                0.3479212   159
## [1253] { "general",                        
##          "national",                       
##          "people"}          0.3479212   159
## [1254] { 
## NA,                             
##          "national",                       
##          "numbers"}         0.3107221   142
## [1255] { "national",                       
##          "numbers",                        
##          NA}                0.3107221   142
## [1256] { "national",                       
##          "numbers",                        
##          "people"}          0.3019694   138
## [1257] { 
## NA,                             
##          "american",                       
##          "national"}        0.3019694   138
## [1258] { "american",                       
##          "national",                       
##          NA}                0.3019694   138
## [1259] { "campaign",                       
##          "national",                       
##          "polls"}           0.3019694   138
## [1260] { 
## NA,                             
##          "campaign",                       
##          "national"}        0.3172867   145
## [1261] { "campaign",                       
##          "national",                       
##          NA}                0.3172867   145
## [1262] { "campaign",                       
##          "national",                       
##          "people"}          0.3085339   141
## [1263] { "national",                       
##          "polls",                          
##          "voters"}          0.3085339   141
## [1264] { 
## NA,                             
##          "national",                       
##          "voters"}          0.3369803   154
## [1265] { "national",                       
##          "voters",                         
##          NA}                0.3369803   154
## [1266] { "national",                       
##          "people",                         
##          "voters"}          0.3260394   149
## [1267] { 
## NA,                             
##          "national",                       
##          "polls"}           0.3326039   152
## [1268] { "national",                       
##          "polls",                          
##          NA}                0.3326039   152
## [1269] { "national",                       
##          "people",                         
##          "polls"}           0.3216630   147
## [1270] { 
## NA,                             
##          "national",                       
##          "war"}             0.3041575   139
## [1271] { 
## NA,                             
##          "national",                       
##          NA}                0.3763676   172
## [1272] { 
## NA,                             
##          "national",                       
##          "people"}          0.3544858   162
## [1273] { "national",                       
##          "war",                            
##          NA}                0.3041575   139
## [1274] { "national",                       
##          "people",                         
##          NA}                0.3544858   162
## [1275] { "campaign",                       
##          "place",                          
##          "polls"}           0.3216630   147
## [1276] { 
## NA,                             
##          "campaign",                       
##          "place"}           0.3238512   148
## [1277] { "campaign",                       
##          "place",                          
##          NA}                0.3369803   154
## [1278] { "campaign",                       
##          "people",                         
##          "place"}           0.3238512   148
## [1279] { 
## NA,                             
##          "place",                          
##          "voters"}          0.3063457   140
## [1280] { "place",                          
##          "voters",                         
##          NA}                0.3150985   144
## [1281] { 
## NA,                             
##          "place",                          
##          "polls"}           0.3194748   146
## [1282] { "place",                          
##          "polls",                          
##          NA}                0.3326039   152
## [1283] { "people",                         
##          "place",                          
##          "polls"}           0.3216630   147
## [1284] { 
## NA,                             
##          "place",                          
##          NA}                0.3544858   162
## [1285] { 
## NA,                             
##          "people",                         
##          "place"}           0.3216630   147
## [1286] { "people",                         
##          "place",                          
##          NA}                0.3347921   153
## [1287] { 
## NA,                             
##          "aug",                            
##          NA}                0.3260394   149
## [1288] { "aug",                            
##          "people",                         
##          NA}                0.3019694   138
## [1289] { "lead",                           
##          "put",                            
##          NA}                0.3019694   138
## [1290] { "lead",                           
##          "people",                         
##          "put"}             0.3041575   139
## [1291] { 
## NA,                             
##          "numbers",                        
##          "put"}             0.3041575   139
## [1292] { "numbers",                        
##          "put",                            
##          NA}                0.3129103   143
## [1293] { "campaign",                       
##          "put",                            
##          "voters"}          0.3063457   140
## [1294] { "campaign",                       
##          "polls",                          
##          "put"}             0.3347921   153
## [1295] { 
## NA,                             
##          "campaign",                       
##          "put"}             0.3369803   154
## [1296] { "campaign",                       
##          "put",                            
##          NA}                0.3501094   160
## [1297] { "campaign",                       
##          "people",                         
##          "put"}             0.3413567   156
## [1298] { "polls",                          
##          "put",                            
##          "voters"}          0.3129103   143
## [1299] { 
## NA,                             
##          "put",                            
##          "voters"}          0.3129103   143
## [1300] { "put",                            
##          "voters",                         
##          NA}                0.3216630   147
## [1301] { "people",                         
##          "put",                            
##          "voters"}          0.3107221   142
## [1302] { 
## NA,                             
##          "polls",                          
##          "put"}             0.3347921   153
## [1303] { "polls",                          
##          "put",                            
##          NA}                0.3479212   159
## [1304] { "people",                         
##          "polls",                          
##          "put"}             0.3391685   155
## [1305] { 
## NA,                             
##          "put",                            
##          NA}                0.3807440   174
## [1306] { 
## NA,                             
##          "people",                         
##          "put"}             0.3391685   155
## [1307] { "people",                         
##          "put",                            
##          "war"}             0.3019694   138
## [1308] { "people",                         
##          "put",                            
##          NA}                0.3522976   161
## [1309] { "campaign",                       
##          "kerrys",                         
##          "polls"}           0.3194748   146
## [1310] { 
## NA,                             
##          "campaign",                       
##          "kerrys"}          0.3107221   142
## [1311] { "campaign",                       
##          "kerrys",                         
##          NA}                0.3238512   148
## [1312] { "campaign",                       
##          "kerrys",                         
##          "people"}          0.3216630   147
## [1313] { "kerrys",                         
##          "voters",                         
##          NA}                0.3063457   140
## [1314] { 
## NA,                             
##          "kerrys",                         
##          "polls"}           0.3041575   139
## [1315] { "kerrys",                         
##          "polls",                          
##          NA}                0.3172867   145
## [1316] { "kerrys",                         
##          "people",                         
##          "polls"}           0.3129103   143
## [1317] { 
## NA,                             
##          "kerrys",                         
##          NA}                0.3238512   148
## [1318] { 
## NA,                             
##          "kerrys",                         
##          "people"}          0.3085339   141
## [1319] { "kerrys",                         
##          "people",                         
##          NA}                0.3216630   147
## [1320] { 
## NA,                             
##          "numbers",                        
##          "top"}             0.3085339   141
## [1321] { "numbers",                        
##          "top",                            
##          NA}                0.3150985   144
## [1322] { "numbers",                        
##          "people",                         
##          "top"}             0.3129103   143
## [1323] { "iraq",                           
##          "top",                            
##          NA}                0.3019694   138
## [1324] { 
## NA,                             
##          "campaign",                       
##          "top"}             0.3041575   139
## [1325] { "campaign",                       
##          "top",                            
##          NA}                0.3107221   142
## [1326] { "campaign",                       
##          "people",                         
##          "top"}             0.3063457   140
## [1327] { "polls",                          
##          "top",                            
##          "voters"}          0.3019694   138
## [1328] { 
## NA,                             
##          "top",                            
##          "voters"}          0.3172867   145
## [1329] { "top",                            
##          "voters",                         
##          NA}                0.3238512   148
## [1330] { "people",                         
##          "top",                            
##          "voters"}          0.3194748   146
## [1331] { 
## NA,                             
##          "polls",                          
##          "top"}             0.3194748   146
## [1332] { "polls",                          
##          "top",                            
##          NA}                0.3260394   149
## [1333] { "people",                         
##          "polls",                          
##          "top"}             0.3216630   147
## [1334] { 
## NA,                             
##          "top",                            
##          "war"}             0.3041575   139
## [1335] { 
## NA,                             
##          "top",                            
##          NA}                0.3501094   160
## [1336] { 
## NA,                             
##          "people",                         
##          "top"}             0.3391685   155
## [1337] { "top",                            
##          "war",                            
##          NA}                0.3107221   142
## [1338] { "people",                         
##          "top",                            
##          "war"}             0.3085339   141
## [1339] { "people",                         
##          "top",                            
##          NA}                0.3457330   158
## [1340] { "bushs",                          
##          "elections",                      
##          "vote"}            0.3260394   149
## [1341] { "elections",                      
##          "lead",                           
##          "vote"}            0.3194748   146
## [1342] { "elections",                      
##          "general",                        
##          "vote"}            0.3479212   159
## [1343] { "elections",                      
##          "polls",                          
##          "vote"}            0.3172867   145
## [1344] { 
## NA,                             
##          "elections",                      
##          "vote"}            0.3150985   144
## [1345] { "elections",                      
##          "vote",                           
##          "war"}             0.3085339   141
## [1346] { "elections",                      
##          "vote",                           
##          NA}                0.3238512   148
## [1347] { "elections",                      
##          "people",                         
##          "vote"}            0.3347921   153
## [1348] { "bushs",                          
##          "elections",                      
##          "lead"}            0.3216630   147
## [1349] { "bushs",                          
##          "elections",                      
##          "general"}         0.3347921   153
## [1350] { "bushs",                          
##          "campaign",                       
##          "elections"}       0.3063457   140
## [1351] { "bushs",                          
##          "elections",                      
##          "polls"}           0.3194748   146
## [1352] { 
## NA,                             
##          "bushs",                          
##          "elections"}       0.3107221   142
## [1353] { "bushs",                          
##          "elections",                      
##          "war"}             0.3019694   138
## [1354] { "bushs",                          
##          "elections",                      
##          NA}                0.3238512   148
## [1355] { "bushs",                          
##          "elections",                      
##          "people"}          0.3304158   151
## [1356] { "elections",                      
##          "general",                        
##          "lead"}            0.3282276   150
## [1357] { "campaign",                       
##          "elections",                      
##          "lead"}            0.3019694   138
## [1358] { "elections",                      
##          "lead",                           
##          "polls"}           0.3129103   143
## [1359] { 
## NA,                             
##          "elections",                      
##          "lead"}            0.3107221   142
## [1360] { "elections",                      
##          "lead",                           
##          NA}                0.3238512   148
## [1361] { "elections",                      
##          "lead",                           
##          "people"}          0.3282276   150
## [1362] { "campaign",                       
##          "elections",                      
##          "general"}         0.3129103   143
## [1363] { "elections",                      
##          "general",                        
##          "voters"}          0.3041575   139
## [1364] { "elections",                      
##          "general",                        
##          "polls"}           0.3238512   148
## [1365] { 
## NA,                             
##          "elections",                      
##          "general"}         0.3238512   148
## [1366] { "elections",                      
##          "general",                        
##          "war"}             0.3150985   144
## [1367] { "elections",                      
##          "general",                        
##          NA}                0.3347921   153
## [1368] { "elections",                      
##          "general",                        
##          "people"}          0.3479212   159
## [1369] { "elections",                      
##          "numbers",                        
##          NA}                0.3085339   141
## [1370] { "elections",                      
##          "numbers",                        
##          "people"}          0.3019694   138
## [1371] { "campaign",                       
##          "elections",                      
##          "polls"}           0.3129103   143
## [1372] { "campaign",                       
##          "elections",                      
##          NA}                0.3129103   143
## [1373] { "campaign",                       
##          "elections",                      
##          "people"}          0.3150985   144
## [1374] { 
## NA,                             
##          "elections",                      
##          "voters"}          0.3085339   141
## [1375] { "elections",                      
##          "voters",                         
##          NA}                0.3172867   145
## [1376] { "elections",                      
##          "people",                         
##          "voters"}          0.3129103   143
## [1377] { 
## NA,                             
##          "elections",                      
##          "polls"}           0.3172867   145
## [1378] { "elections",                      
##          "polls",                          
##          "war"}             0.3041575   139
## [1379] { "elections",                      
##          "polls",                          
##          NA}                0.3304158   151
## [1380] { "elections",                      
##          "people",                         
##          "polls"}           0.3282276   150
## [1381] { 
## NA,                             
##          "elections",                      
##          NA}                0.3413567   156
## [1382] { 
## NA,                             
##          "elections",                      
##          "people"}          0.3326039   152
## [1383] { "elections",                      
##          "war",                            
##          NA}                0.3107221   142
## [1384] { "elections",                      
##          "people",                         
##          "war"}             0.3172867   145
## [1385] { "elections",                      
##          "people",                         
##          NA}                0.3457330   158
## [1386] { "candidates",                     
##          "meteor",                         
##          "people"}          0.3019694   138
## [1387] { "candidates",                     
##          "general",                        
##          "vote"}            0.3107221   142
## [1388] { "candidates",                     
##          "people",                         
##          "vote"}            0.3085339   141
## [1389] { "bushs",                          
##          "candidates",                     
##          "lead"}            0.3019694   138
## [1390] { "bushs",                          
##          "candidates",                     
##          "general"}         0.3107221   142
## [1391] { "bushs",                          
##          "campaign",                       
##          "candidates"}      0.3085339   141
## [1392] { "bushs",                          
##          "candidates",                     
##          "polls"}           0.3107221   142
## [1393] { 
## NA,                             
##          "bushs",                          
##          "candidates"}      0.3041575   139
## [1394] { "bushs",                          
##          "candidates",                     
##          NA}                0.3172867   145
## [1395] { "bushs",                          
##          "candidates",                     
##          "people"}          0.3260394   149
## [1396] { "candidates",                     
##          "general",                        
##          "lead"}            0.3063457   140
## [1397] { "campaign",                       
##          "candidates",                     
##          "lead"}            0.3085339   141
## [1398] { "candidates",                     
##          "lead",                           
##          "polls"}           0.3085339   141
## [1399] { 
## NA,                             
##          "candidates",                     
##          "lead"}            0.3063457   140
## [1400] { "candidates",                     
##          "lead",                           
##          NA}                0.3194748   146
## [1401] { "candidates",                     
##          "lead",                           
##          "people"}          0.3304158   151
## [1402] { "campaign",                       
##          "candidates",                     
##          "general"}         0.3085339   141
## [1403] { "candidates",                     
##          "general",                        
##          "polls"}           0.3041575   139
## [1404] { 
## NA,                             
##          "candidates",                     
##          "general"}         0.3085339   141
## [1405] { "candidates",                     
##          "general",                        
##          NA}                0.3194748   146
## [1406] { "candidates",                     
##          "general",                        
##          "people"}          0.3326039   152
## [1407] { "candidates",                     
##          "numbers",                        
##          NA}                0.3063457   140
## [1408] { "candidates",                     
##          "numbers",                        
##          "people"}          0.3019694   138
## [1409] { "campaign",                       
##          "candidates",                     
##          "voters"}          0.3129103   143
## [1410] { "campaign",                       
##          "candidates",                     
##          "polls"}           0.3260394   149
## [1411] { 
## NA,                             
##          "campaign",                       
##          "candidates"}      0.3304158   151
## [1412] { "campaign",                       
##          "candidates",                     
##          "war"}             0.3041575   139
## [1413] { "campaign",                       
##          "candidates",                     
##          NA}                0.3435449   157
## [1414] { "campaign",                       
##          "candidates",                     
##          "people"}          0.3435449   157
## [1415] { "candidates",                     
##          "polls",                          
##          "voters"}          0.3085339   141
## [1416] { 
## NA,                             
##          "candidates",                     
##          "voters"}          0.3238512   148
## [1417] { "candidates",                     
##          "voters",                         
##          NA}                0.3326039   152
## [1418] { "candidates",                     
##          "people",                         
##          "voters"}          0.3326039   152
## [1419] { 
## NA,                             
##          "candidates",                     
##          "polls"}           0.3194748   146
## [1420] { "candidates",                     
##          "polls",                          
##          "war"}             0.3085339   141
## [1421] { "candidates",                     
##          "polls",                          
##          NA}                0.3326039   152
## [1422] { "candidates",                     
##          "people",                         
##          "polls"}           0.3347921   153
## [1423] { 
## NA,                             
##          "candidates",                     
##          NA}                0.3654267   167
## [1424] { 
## NA,                             
##          "candidates",                     
##          "people"}          0.3501094   160
## [1425] { "candidates",                     
##          "war",                            
##          NA}                0.3107221   142
## [1426] { "candidates",                     
##          "people",                         
##          "war"}             0.3172867   145
## [1427] { "candidates",                     
##          "people",                         
##          NA}                0.3632385   166
## [1428] { "campaign",                       
##          "lead",                           
##          "meteor"}          0.3041575   139
## [1429] { "lead",                           
##          "meteor",                         
##          "polls"}           0.3129103   143
## [1430] { 
## NA,                             
##          "lead",                           
##          "meteor"}          0.3041575   139
## [1431] { "lead",                           
##          "meteor",                         
##          NA}                0.3172867   145
## [1432] { "lead",                           
##          "meteor",                         
##          "people"}          0.3194748   146
## [1433] { "general",                        
##          "meteor",                         
##          "people"}          0.3041575   139
## [1434] { "meteor",                         
##          "numbers",                        
##          NA}                0.3063457   140
## [1435] { "meteor",                         
##          "numbers",                        
##          "people"}          0.3019694   138
## [1436] { "campaign",                       
##          "meteor",                         
##          "voters"}          0.3107221   142
## [1437] { "campaign",                       
##          "meteor",                         
##          "polls"}           0.3391685   155
## [1438] { 
## NA,                             
##          "campaign",                       
##          "meteor"}          0.3391685   155
## [1439] { "campaign",                       
##          "meteor",                         
##          NA}                0.3522976   161
## [1440] { "campaign",                       
##          "meteor",                         
##          "people"}          0.3435449   157
## [1441] { "meteor",                         
##          "polls",                          
##          "voters"}          0.3150985   144
## [1442] { 
## NA,                             
##          "meteor",                         
##          "voters"}          0.3216630   147
## [1443] { "meteor",                         
##          "voters",                         
##          NA}                0.3304158   151
## [1444] { "meteor",                         
##          "people",                         
##          "voters"}          0.3216630   147
## [1445] { 
## NA,                             
##          "meteor",                         
##          "polls"}           0.3391685   155
## [1446] { "meteor",                         
##          "polls",                          
##          NA}                0.3522976   161
## [1447] { "meteor",                         
##          "people",                         
##          "polls"}           0.3435449   157
## [1448] { 
## NA,                             
##          "meteor",                         
##          NA}                0.3719912   170
## [1449] { 
## NA,                             
##          "meteor",                         
##          "people"}          0.3479212   159
## [1450] { "meteor",                         
##          "people",                         
##          NA}                0.3610503   165
## [1451] { "military",                       
##          "million",                        
##          NA}                0.3019694   138
## [1452] { "military",                       
##          "races",                          
##          NA}                0.3019694   138
## [1453] { "military",                       
##          "numbers",                        
##          "voters"}          0.3063457   140
## [1454] { "military",                       
##          "numbers",                        
##          "polls"}           0.3063457   140
## [1455] { 
## NA,                             
##          "military",                       
##          "numbers"}         0.3172867   145
## [1456] { "military",                       
##          "numbers",                        
##          NA}                0.3260394   149
## [1457] { "military",                       
##          "numbers",                        
##          "people"}          0.3150985   144
## [1458] { "american",                       
##          "military",                       
##          "polls"}           0.3019694   138
## [1459] { 
## NA,                             
##          "american",                       
##          "military"}        0.3129103   143
## [1460] { "american",                       
##          "military",                       
##          NA}                0.3216630   147
## [1461] { "american",                       
##          "military",                       
##          "people"}          0.3129103   143
## [1462] { "iraq",                           
##          "military",                       
##          NA}                0.3041575   139
## [1463] { "iraq",                           
##          "military",                       
##          "people"}          0.3019694   138
## [1464] { "campaign",                       
##          "military",                       
##          "voters"}          0.3150985   144
## [1465] { "campaign",                       
##          "military",                       
##          "polls"}           0.3326039   152
## [1466] { 
## NA,                             
##          "campaign",                       
##          "military"}        0.3369803   154
## [1467] { "campaign",                       
##          "military",                       
##          NA}                0.3501094   160
## [1468] { "campaign",                       
##          "military",                       
##          "people"}          0.3391685   155
## [1469] { "military",                       
##          "polls",                          
##          "voters"}          0.3347921   153
## [1470] { 
## NA,                             
##          "military",                       
##          "voters"}          0.3479212   159
## [1471] { "military",                       
##          "voters",                         
##          "war"}             0.3063457   140
## [1472] { "military",                       
##          "voters",                         
##          NA}                0.3566740   163
## [1473] { "military",                       
##          "people",                         
##          "voters"}          0.3435449   157
## [1474] { 
## NA,                             
##          "military",                       
##          "polls"}           0.3544858   162
## [1475] { "military",                       
##          "polls",                          
##          "war"}             0.3107221   142
## [1476] { "military",                       
##          "polls",                          
##          NA}                0.3676149   168
## [1477] { "military",                       
##          "people",                         
##          "polls"}           0.3566740   163
## [1478] { 
## NA,                             
##          "military",                       
##          "war"}             0.3085339   141
## [1479] { 
## NA,                             
##          "military",                       
##          NA}                0.3894967   178
## [1480] { 
## NA,                             
##          "military",                       
##          "people"}          0.3719912   170
## [1481] { "military",                       
##          "war",                            
##          NA}                0.3216630   147
## [1482] { "military",                       
##          "people",                         
##          "war"}             0.3194748   146
## [1483] { "military",                       
##          "people",                         
##          NA}                0.3851204   176
## [1484] { "bushs",                          
##          "lead",                           
##          "vote"}            0.3216630   147
## [1485] { "bushs",                          
##          "general",                        
##          "vote"}            0.3544858   162
## [1486] { "bushs",                          
##          "campaign",                       
##          "vote"}            0.3194748   146
## [1487] { "bushs",                          
##          "vote",                           
##          "voters"}          0.3107221   142
## [1488] { "bushs",                          
##          "polls",                          
##          "vote"}            0.3260394   149
## [1489] { 
## NA,                             
##          "bushs",                          
##          "vote"}            0.3282276   150
## [1490] { "bushs",                          
##          "vote",                           
##          NA}                0.3369803   154
## [1491] { "bushs",                          
##          "people",                         
##          "vote"}            0.3413567   156
## [1492] { "general",                        
##          "lead",                           
##          "vote"}            0.3413567   156
## [1493] { "campaign",                       
##          "lead",                           
##          "vote"}            0.3085339   141
## [1494] { "lead",                           
##          "polls",                          
##          "vote"}            0.3172867   145
## [1495] { 
## NA,                             
##          "lead",                           
##          "vote"}            0.3216630   147
## [1496] { "lead",                           
##          "vote",                           
##          NA}                0.3304158   151
## [1497] { "lead",                           
##          "people",                         
##          "vote"}            0.3347921   153
## [1498] { "general",                        
##          "races",                          
##          "vote"}            0.3019694   138
## [1499] { "general",                        
##          "numbers",                        
##          "vote"}            0.3063457   140
## [1500] { "american",                       
##          "general",                        
##          "vote"}            0.3107221   142
## [1501] { "general",                        
##          "iraq",                           
##          "vote"}            0.3063457   140
## [1502] { "campaign",                       
##          "general",                        
##          "vote"}            0.3457330   158
## [1503] { "general",                        
##          "vote",                           
##          "voters"}          0.3326039   152
## [1504] { "general",                        
##          "republicans",                    
##          "vote"}            0.3019694   138
## [1505] { "general",                        
##          "polls",                          
##          "vote"}            0.3501094   160
## [1506] { 
## NA,                             
##          "general",                        
##          "vote"}            0.3610503   165
## [1507] { "general",                        
##          "vote",                           
##          "war"}             0.3194748   146
## [1508] { "general",                        
##          "vote",                           
##          NA}                0.3698031   169
## [1509] { "general",                        
##          "people",                         
##          "vote"}            0.3763676   172
## [1510] { 
## NA,                             
##          "races",                          
##          "vote"}            0.3041575   139
## [1511] { "races",                          
##          "vote",                           
##          NA}                0.3085339   141
## [1512] { "people",                         
##          "races",                          
##          "vote"}            0.3041575   139
## [1513] { 
## NA,                             
##          "numbers",                        
##          "vote"}            0.3129103   143
## [1514] { "numbers",                        
##          "vote",                           
##          NA}                0.3172867   145
## [1515] { "numbers",                        
##          "people",                         
##          "vote"}            0.3107221   142
## [1516] { 
## NA,                             
##          "american",                       
##          "vote"}            0.3041575   139
## [1517] { "american",                       
##          "vote",                           
##          NA}                0.3107221   142
## [1518] { "american",                       
##          "people",                         
##          "vote"}            0.3107221   142
## [1519] { 
## NA,                             
##          "iraq",                           
##          "vote"}            0.3019694   138
## [1520] { "iraq",                           
##          "vote",                           
##          NA}                0.3085339   141
## [1521] { "iraq",                           
##          "people",                         
##          "vote"}            0.3063457   140
## [1522] { "campaign",                       
##          "vote",                           
##          "voters"}          0.3085339   141
## [1523] { "campaign",                       
##          "polls",                          
##          "vote"}            0.3304158   151
## [1524] { 
## NA,                             
##          "campaign",                       
##          "vote"}            0.3304158   151
## [1525] { "campaign",                       
##          "vote",                           
##          NA}                0.3391685   155
## [1526] { "campaign",                       
##          "people",                         
##          "vote"}            0.3369803   154
## [1527] { "polls",                          
##          "vote",                           
##          "voters"}          0.3194748   146
## [1528] { 
## NA,                             
##          "vote",                           
##          "voters"}          0.3391685   155
## [1529] { "vote",                           
##          "voters",                         
##          NA}                0.3435449   157
## [1530] { "people",                         
##          "vote",                           
##          "voters"}          0.3326039   152
## [1531] { 
## NA,                             
##          "polls",                          
##          "vote"}            0.3457330   158
## [1532] { "polls",                          
##          "vote",                           
##          "war"}             0.3041575   139
## [1533] { "polls",                          
##          "vote",                           
##          NA}                0.3544858   162
## [1534] { "people",                         
##          "polls",                          
##          "vote"}            0.3479212   159
## [1535] { 
## NA,                             
##          "vote",                           
##          "war"}             0.3041575   139
## [1536] { 
## NA,                             
##          "vote",                           
##          NA}                0.3763676   172
## [1537] { 
## NA,                             
##          "people",                         
##          "vote"}            0.3610503   165
## [1538] { "vote",                           
##          "war",                            
##          NA}                0.3129103   143
## [1539] { "people",                         
##          "vote",                           
##          "war"}             0.3194748   146
## [1540] { "people",                         
##          "vote",                           
##          NA}                0.3698031   169
## [1541] { 
## NA,                             
##          "numbers",                        
##          "report"}          0.3063457   140
## [1542] { "numbers",                        
##          "report",                         
##          NA}                0.3150985   144
## [1543] { "numbers",                        
##          "people",                         
##          "report"}          0.3063457   140
## [1544] { "american",                       
##          "report",                         
##          NA}                0.3063457   140
## [1545] { "campaign",                       
##          "report",                         
##          "voters"}          0.3194748   146
## [1546] { "campaign",                       
##          "polls",                          
##          "report"}          0.3369803   154
## [1547] { 
## NA,                             
##          "campaign",                       
##          "report"}          0.3457330   158
## [1548] { "campaign",                       
##          "report",                         
##          "war"}             0.3019694   138
## [1549] { "campaign",                       
##          "report",                         
##          NA}                0.3566740   163
## [1550] { "campaign",                       
##          "people",                         
##          "report"}          0.3369803   154
## [1551] { "polls",                          
##          "report",                         
##          "voters"}          0.3216630   147
## [1552] { 
## NA,                             
##          "report",                         
##          "voters"}          0.3282276   150
## [1553] { "report",                         
##          "voters",                         
##          NA}                0.3369803   154
## [1554] { "people",                         
##          "report",                         
##          "voters"}          0.3194748   146
## [1555] { 
## NA,                             
##          "polls",                          
##          "report"}          0.3413567   156
## [1556] { "polls",                          
##          "report",                         
##          "war"}             0.3063457   140
## [1557] { "polls",                          
##          "report",                         
##          NA}                0.3522976   161
## [1558] { "people",                         
##          "polls",                          
##          "report"}          0.3391685   155
## [1559] { 
## NA,                             
##          "report",                         
##          NA}                0.3807440   174
## [1560] { 
## NA,                             
##          "people",                         
##          "report"}          0.3435449   157
## [1561] { "report",                         
##          "war",                            
##          NA}                0.3063457   140
## [1562] { "people",                         
##          "report",                         
##          "war"}             0.3085339   141
## [1563] { "people",                         
##          "report",                         
##          NA}                0.3544858   162
## [1564] { "bushs",                          
##          "general",                        
##          "lead"}            0.3347921   153
## [1565] { "bushs",                          
##          "campaign",                       
##          "lead"}            0.3216630   147
## [1566] { "bushs",                          
##          "lead",                           
##          "voters"}          0.3107221   142
## [1567] { "bushs",                          
##          "lead",                           
##          "polls"}           0.3326039   152
## [1568] { 
## NA,                             
##          "bushs",                          
##          "lead"}            0.3304158   151
## [1569] { "bushs",                          
##          "lead",                           
##          "war"}             0.3107221   142
## [1570] { "bushs",                          
##          "lead",                           
##          NA}                0.3435449   157
## [1571] { "bushs",                          
##          "lead",                           
##          "people"}          0.3435449   157
## [1572] { "bushs",                          
##          "campaign",                       
##          "general"}         0.3413567   156
## [1573] { "bushs",                          
##          "general",                        
##          "voters"}          0.3238512   148
## [1574] { "bushs",                          
##          "general",                        
##          "polls"}           0.3391685   155
## [1575] { 
## NA,                             
##          "bushs",                          
##          "general"}         0.3479212   159
## [1576] { "bushs",                          
##          "general",                        
##          "war"}             0.3129103   143
## [1577] { "bushs",                          
##          "general",                        
##          NA}                0.3588621   164
## [1578] { "bushs",                          
##          "general",                        
##          "people"}          0.3588621   164
## [1579] { "bushs",                          
##          "races",                          
##          NA}                0.3041575   139
## [1580] { "bushs",                          
##          "numbers",                        
##          "voters"}          0.3019694   138
## [1581] { "bushs",                          
##          "numbers",                        
##          "polls"}           0.3019694   138
## [1582] { 
## NA,                             
##          "bushs",                          
##          "numbers"}         0.3150985   144
## [1583] { "bushs",                          
##          "numbers",                        
##          NA}                0.3238512   148
## [1584] { "bushs",                          
##          "numbers",                        
##          "people"}          0.3150985   144
## [1585] { "american",                       
##          "bushs",                          
##          NA}                0.3063457   140
## [1586] { "american",                       
##          "bushs",                          
##          "people"}          0.3063457   140
## [1587] { "bushs",                          
##          "iraq",                           
##          NA}                0.3063457   140
## [1588] { "bushs",                          
##          "iraq",                           
##          "people"}          0.3041575   139
## [1589] { "bushs",                          
##          "campaign",                       
##          "voters"}          0.3282276   150
## [1590] { "bushs",                          
##          "campaign",                       
##          "polls"}           0.3522976   161
## [1591] { 
## NA,                             
##          "bushs",                          
##          "campaign"}        0.3435449   157
## [1592] { "bushs",                          
##          "campaign",                       
##          "war"}             0.3063457   140
## [1593] { "bushs",                          
##          "campaign",                       
##          NA}                0.3566740   163
## [1594] { "bushs",                          
##          "campaign",                       
##          "people"}          0.3522976   161
## [1595] { "bushs",                          
##          "political",                      
##          "war"}             0.3019694   138
## [1596] { "bushs",                          
##          "political",                      
##          NA}                0.3019694   138
## [1597] { "bushs",                          
##          "people",                         
##          "political"}       0.3063457   140
## [1598] { "bushs",                          
##          "polls",                          
##          "voters"}          0.3369803   154
## [1599] { 
## NA,                             
##          "bushs",                          
##          "voters"}          0.3457330   158
## [1600] { "bushs",                          
##          "voters",                         
##          "war"}             0.3019694   138
## [1601] { "bushs",                          
##          "voters",                         
##          NA}                0.3544858   162
## [1602] { "bushs",                          
##          "people",                         
##          "voters"}          0.3391685   155
## [1603] { 
## NA,                             
##          "bushs",                          
##          "polls"}           0.3544858   162
## [1604] { "bushs",                          
##          "polls",                          
##          "war"}             0.3150985   144
## [1605] { "bushs",                          
##          "polls",                          
##          NA}                0.3676149   168
## [1606] { "bushs",                          
##          "people",                         
##          "polls"}           0.3544858   162
## [1607] { 
## NA,                             
##          "bushs",                          
##          "war"}             0.3085339   141
## [1608] { 
## NA,                             
##          "bushs",                          
##          NA}                0.4048140   185
## [1609] { 
## NA,                             
##          "bushs",                          
##          "people"}          0.3610503   165
## [1610] { "bushs",                          
##          "war",                            
##          NA}                0.3216630   147
## [1611] { "bushs",                          
##          "people",                         
##          "war"}             0.3260394   149
## [1612] { "bushs",                          
##          "people",                         
##          NA}                0.3741794   171
## [1613] { 
## NA,                             
##          "dem",                            
##          "million"}         0.3041575   139
## [1614] { "dem",                            
##          "million",                        
##          NA}                0.3107221   142
## [1615] { "dem",                            
##          "million",                        
##          "people"}          0.3063457   140
## [1616] { 
## NA,                             
##          "lead",                           
##          "million"}         0.3063457   140
## [1617] { "lead",                           
##          "million",                        
##          NA}                0.3150985   144
## [1618] { 
## NA,                             
##          "general",                        
##          "million"}         0.3019694   138
## [1619] { "general",                        
##          "million",                        
##          NA}                0.3085339   141
## [1620] { 
## NA,                             
##          "million",                        
##          "races"}           0.3063457   140
## [1621] { "million",                        
##          "races",                          
##          NA}                0.3107221   142
## [1622] { "million",                        
##          "people",                         
##          "races"}           0.3041575   139
## [1623] { "campaign",                       
##          "million",                        
##          "numbers"}         0.3063457   140
## [1624] { "million",                        
##          "numbers",                        
##          "voters"}          0.3129103   143
## [1625] { "million",                        
##          "numbers",                        
##          "polls"}           0.3260394   149
## [1626] { 
## NA,                             
##          "million",                        
##          "numbers"}         0.3413567   156
## [1627] { "million",                        
##          "numbers",                        
##          "war"}             0.3085339   141
## [1628] { "million",                        
##          "numbers",                        
##          NA}                0.3501094   160
## [1629] { "million",                        
##          "numbers",                        
##          "people"}          0.3369803   154
## [1630] { 
## NA,                             
##          "american",                       
##          "million"}         0.3194748   146
## [1631] { "american",                       
##          "million",                        
##          NA}                0.3238512   148
## [1632] { "american",                       
##          "million",                        
##          "people"}          0.3085339   141
## [1633] { "iraq",                           
##          "million",                        
##          "polls"}           0.3019694   138
## [1634] { 
## NA,                             
##          "iraq",                           
##          "million"}         0.3085339   141
## [1635] { "iraq",                           
##          "million",                        
##          NA}                0.3172867   145
## [1636] { "iraq",                           
##          "million",                        
##          "people"}          0.3107221   142
## [1637] { "campaign",                       
##          "million",                        
##          "voters"}          0.3129103   143
## [1638] { "campaign",                       
##          "million",                        
##          "polls"}           0.3326039   152
## [1639] { 
## NA,                             
##          "campaign",                       
##          "million"}         0.3479212   159
## [1640] { "campaign",                       
##          "million",                        
##          NA}                0.3566740   163
## [1641] { "campaign",                       
##          "million",                        
##          "people"}          0.3413567   156
## [1642] { "million",                        
##          "political",                      
##          NA}                0.3041575   139
## [1643] { "million",                        
##          "polls",                          
##          "voters"}          0.3304158   151
## [1644] { 
## NA,                             
##          "million",                        
##          "voters"}          0.3479212   159
## [1645] { "million",                        
##          "voters",                         
##          "war"}             0.3107221   142
## [1646] { "million",                        
##          "voters",                         
##          NA}                0.3566740   163
## [1647] { "million",                        
##          "people",                         
##          "voters"}          0.3435449   157
## [1648] { 
## NA,                             
##          "million",                        
##          "polls"}           0.3632385   166
## [1649] { "million",                        
##          "polls",                          
##          "war"}             0.3129103   143
## [1650] { "million",                        
##          "polls",                          
##          NA}                0.3719912   170
## [1651] { "million",                        
##          "people",                         
##          "polls"}           0.3566740   163
## [1652] { 
## NA,                             
##          "million",                        
##          "war"}             0.3194748   146
## [1653] { 
## NA,                             
##          "million",                        
##          NA}                0.4179431   191
## [1654] { 
## NA,                             
##          "million",                        
##          "people"}          0.3894967   178
## [1655] { "million",                        
##          "war",                            
##          NA}                0.3282276   150
## [1656] { "million",                        
##          "people",                         
##          "war"}             0.3238512   148
## [1657] { "million",                        
##          "people",                         
##          NA}                0.3982495   182
## [1658] { "numbers",                        
##          "sep",                            
##          NA}                0.3019694   138
## [1659] { "campaign",                       
##          "sep",                            
##          NA}                0.3063457   140
## [1660] { "polls",                          
##          "sep",                            
##          "voters"}          0.3041575   139
## [1661] { 
## NA,                             
##          "sep",                            
##          "voters"}          0.3150985   144
## [1662] { "sep",                            
##          "voters",                         
##          NA}                0.3238512   148
## [1663] { "people",                         
##          "sep",                            
##          "voters"}          0.3150985   144
## [1664] { 
## NA,                             
##          "polls",                          
##          "sep"}             0.3107221   142
## [1665] { "polls",                          
##          "sep",                            
##          NA}                0.3216630   147
## [1666] { "people",                         
##          "polls",                          
##          "sep"}             0.3129103   143
## [1667] { 
## NA,                             
##          "sep",                            
##          NA}                0.3369803   154
## [1668] { 
## NA,                             
##          "people",                         
##          "sep"}             0.3238512   148
## [1669] { "sep",                            
##          "war",                            
##          NA}                0.3041575   139
## [1670] { "people",                         
##          "sep",                            
##          NA}                0.3347921   153
## [1671] { 
## NA,                             
##          "dem",                            
##          "lead"}            0.3041575   139
## [1672] { "dem",                            
##          "lead",                           
##          NA}                0.3107221   142
## [1673] { "dem",                            
##          "lead",                           
##          "people"}          0.3107221   142
## [1674] { 
## NA,                             
##          "dem",                            
##          "general"}         0.3107221   142
## [1675] { "dem",                            
##          "general",                        
##          NA}                0.3150985   144
## [1676] { "dem",                            
##          "general",                        
##          "people"}          0.3150985   144
## [1677] { "dem",                            
##          "polls",                          
##          "races"}           0.3063457   140
## [1678] { 
## NA,                             
##          "dem",                            
##          "races"}           0.3150985   144
## [1679] { "dem",                            
##          "races",                          
##          "war"}             0.3019694   138
## [1680] { "dem",                            
##          "races",                          
##          NA}                0.3194748   146
## [1681] { "dem",                            
##          "people",                         
##          "races"}           0.3150985   144
## [1682] { "dem",                            
##          "numbers",                        
##          "voters"}          0.3129103   143
## [1683] { "dem",                            
##          "numbers",                        
##          "polls"}           0.3129103   143
## [1684] { 
## NA,                             
##          "dem",                            
##          "numbers"}         0.3260394   149
## [1685] { "dem",                            
##          "numbers",                        
##          "war"}             0.3107221   142
## [1686] { "dem",                            
##          "numbers",                        
##          NA}                0.3326039   152
## [1687] { "dem",                            
##          "numbers",                        
##          "people"}          0.3238512   148
## [1688] { 
## NA,                             
##          "american",                       
##          "dem"}             0.3129103   143
## [1689] { "american",                       
##          "dem",                            
##          "war"}             0.3019694   138
## [1690] { "american",                       
##          "dem",                            
##          NA}                0.3172867   145
## [1691] { "american",                       
##          "dem",                            
##          "people"}          0.3172867   145
## [1692] { "campaign",                       
##          "dem",                            
##          "iraq"}            0.3019694   138
## [1693] { "dem",                            
##          "iraq",                           
##          "voters"}          0.3107221   142
## [1694] { "dem",                            
##          "iraq",                           
##          "polls"}           0.3129103   143
## [1695] { 
## NA,                             
##          "dem",                            
##          "iraq"}            0.3194748   146
## [1696] { "dem",                            
##          "iraq",                           
##          "war"}             0.3129103   143
## [1697] { "dem",                            
##          "iraq",                           
##          NA}                0.3260394   149
## [1698] { "dem",                            
##          "iraq",                           
##          "people"}          0.3238512   148
## [1699] { "campaign",                       
##          "dem",                            
##          "voters"}          0.3238512   148
## [1700] { "campaign",                       
##          "dem",                            
##          "polls"}           0.3369803   154
## [1701] { 
## NA,                             
##          "campaign",                       
##          "dem"}             0.3391685   155
## [1702] { "campaign",                       
##          "dem",                            
##          "war"}             0.3129103   143
## [1703] { "campaign",                       
##          "dem",                            
##          NA}                0.3457330   158
## [1704] { "campaign",                       
##          "dem",                            
##          "people"}          0.3391685   155
## [1705] { "dem",                            
##          "political",                      
##          "voters"}          0.3063457   140
## [1706] { "dem",                            
##          "political",                      
##          "polls"}           0.3063457   140
## [1707] { 
## NA,                             
##          "dem",                            
##          "political"}       0.3129103   143
## [1708] { "dem",                            
##          "political",                      
##          "war"}             0.3150985   144
## [1709] { "dem",                            
##          "political",                      
##          NA}                0.3194748   146
## [1710] { "dem",                            
##          "people",                         
##          "political"}       0.3216630   147
## [1711] { "dem",                            
##          "polls",                          
##          "voters"}          0.3326039   152
## [1712] { 
## NA,                             
##          "dem",                            
##          "voters"}          0.3435449   157
## [1713] { "dem",                            
##          "voters",                         
##          "war"}             0.3238512   148
## [1714] { "dem",                            
##          "voters",                         
##          NA}                0.3501094   160
## [1715] { "dem",                            
##          "people",                         
##          "voters"}          0.3391685   155
## [1716] { 
## NA,                             
##          "dem",                            
##          "polls"}           0.3501094   160
## [1717] { "dem",                            
##          "polls",                          
##          "war"}             0.3282276   150
## [1718] { "dem",                            
##          "polls",                          
##          NA}                0.3566740   163
## [1719] { "dem",                            
##          "people",                         
##          "polls"}           0.3501094   160
## [1720] { 
## NA,                             
##          "dem",                            
##          "war"}             0.3347921   153
## [1721] { 
## NA,                             
##          "dem",                            
##          NA}                0.3807440   174
## [1722] { 
## NA,                             
##          "dem",                            
##          "people"}          0.3610503   165
## [1723] { "dem",                            
##          "war",                            
##          NA}                0.3413567   156
## [1724] { "dem",                            
##          "people",                         
##          "war"}             0.3413567   156
## [1725] { "dem",                            
##          "people",                         
##          NA}                0.3676149   168
## [1726] { "campaign",                       
##          "general",                        
##          "lead"}            0.3304158   151
## [1727] { "general",                        
##          "lead",                           
##          "voters"}          0.3129103   143
## [1728] { "general",                        
##          "lead",                           
##          "polls"}           0.3304158   151
## [1729] { 
## NA,                             
##          "general",                        
##          "lead"}            0.3435449   157
## [1730] { "general",                        
##          "lead",                           
##          "war"}             0.3063457   140
## [1731] { "general",                        
##          "lead",                           
##          NA}                0.3544858   162
## [1732] { "general",                        
##          "lead",                           
##          "people"}          0.3566740   163
## [1733] { 
## NA,                             
##          "lead",                           
##          "races"}           0.3041575   139
## [1734] { "lead",                           
##          "races",                          
##          NA}                0.3107221   142
## [1735] { "lead",                           
##          "people",                         
##          "races"}           0.3063457   140
## [1736] { "campaign",                       
##          "lead",                           
##          "numbers"}         0.3041575   139
## [1737] { "lead",                           
##          "numbers",                        
##          "voters"}          0.3063457   140
## [1738] { "lead",                           
##          "numbers",                        
##          "polls"}           0.3085339   141
## [1739] { 
## NA,                             
##          "lead",                           
##          "numbers"}         0.3304158   151
## [1740] { "lead",                           
##          "numbers",                        
##          NA}                0.3391685   155
## [1741] { "lead",                           
##          "numbers",                        
##          "people"}          0.3260394   149
## [1742] { 
## NA,                             
##          "american",                       
##          "lead"}            0.3085339   141
## [1743] { "american",                       
##          "lead",                           
##          NA}                0.3172867   145
## [1744] { "american",                       
##          "lead",                           
##          "people"}          0.3085339   141
## [1745] { "iraq",                           
##          "lead",                           
##          NA}                0.3085339   141
## [1746] { "iraq",                           
##          "lead",                           
##          "people"}          0.3063457   140
## [1747] { "campaign",                       
##          "lead",                           
##          "voters"}          0.3216630   147
## [1748] { "campaign",                       
##          "lead",                           
##          "polls"}           0.3479212   159
## [1749] { 
## NA,                             
##          "campaign",                       
##          "lead"}            0.3479212   159
## [1750] { "campaign",                       
##          "lead",                           
##          "war"}             0.3063457   140
## [1751] { "campaign",                       
##          "lead",                           
##          NA}                0.3610503   165
## [1752] { "campaign",                       
##          "lead",                           
##          "people"}          0.3566740   163
## [1753] { "lead",                           
##          "people",                         
##          "political"}       0.3041575   139
## [1754] { "lead",                           
##          "polls",                          
##          "voters"}          0.3238512   148
## [1755] { 
## NA,                             
##          "lead",                           
##          "voters"}          0.3457330   158
## [1756] { "lead",                           
##          "voters",                         
##          NA}                0.3544858   162
## [1757] { "lead",                           
##          "people",                         
##          "voters"}          0.3457330   158
## [1758] { "lead",                           
##          "people",                         
##          "republicans"}     0.3041575   139
## [1759] { 
## NA,                             
##          "lead",                           
##          "polls"}           0.3522976   161
## [1760] { "lead",                           
##          "polls",                          
##          "war"}             0.3150985   144
## [1761] { "lead",                           
##          "polls",                          
##          NA}                0.3654267   167
## [1762] { "lead",                           
##          "people",                         
##          "polls"}           0.3588621   164
## [1763] { 
## NA,                             
##          "lead",                           
##          "war"}             0.3085339   141
## [1764] { 
## NA,                             
##          "lead",                           
##          NA}                0.4048140   185
## [1765] { 
## NA,                             
##          "lead",                           
##          "people"}          0.3741794   171
## [1766] { "lead",                           
##          "war",                            
##          NA}                0.3216630   147
## [1767] { "lead",                           
##          "people",                         
##          "war"}             0.3282276   150
## [1768] { "lead",                           
##          "people",                         
##          NA}                0.3873085   177
## [1769] { "general",                        
##          "polls",                          
##          "races"}           0.3041575   139
## [1770] { 
## NA,                             
##          "general",                        
##          "races"}           0.3150985   144
## [1771] { "general",                        
##          "races",                          
##          NA}                0.3194748   146
## [1772] { "general",                        
##          "people",                         
##          "races"}           0.3172867   145
## [1773] { "general",                        
##          "numbers",                        
##          "voters"}          0.3019694   138
## [1774] { "general",                        
##          "numbers",                        
##          "polls"}           0.3019694   138
## [1775] { 
## NA,                             
##          "general",                        
##          "numbers"}         0.3260394   149
## [1776] { "general",                        
##          "numbers",                        
##          NA}                0.3326039   152
## [1777] { "general",                        
##          "numbers",                        
##          "people"}          0.3260394   149
## [1778] { "american",                       
##          "general",                        
##          "polls"}           0.3019694   138
## [1779] { 
## NA,                             
##          "american",                       
##          "general"}         0.3172867   145
## [1780] { "american",                       
##          "general",                        
##          NA}                0.3238512   148
## [1781] { "american",                       
##          "general",                        
##          "people"}          0.3216630   147
## [1782] { "general",                        
##          "iraq",                           
##          "polls"}           0.3041575   139
## [1783] { 
## NA,                             
##          "general",                        
##          "iraq"}            0.3107221   142
## [1784] { "general",                        
##          "iraq",                           
##          NA}                0.3194748   146
## [1785] { "general",                        
##          "iraq",                           
##          "people"}          0.3194748   146
## [1786] { "campaign",                       
##          "general",                        
##          "voters"}          0.3304158   151
## [1787] { "campaign",                       
##          "general",                        
##          "polls"}           0.3544858   162
## [1788] { 
## NA,                             
##          "campaign",                       
##          "general"}         0.3566740   163
## [1789] { "campaign",                       
##          "general",                        
##          "war"}             0.3019694   138
## [1790] { "campaign",                       
##          "general",                        
##          NA}                0.3676149   168
## [1791] { "campaign",                       
##          "general",                        
##          "people"}          0.3632385   166
## [1792] { "general",                        
##          "political",                      
##          "war"}             0.3019694   138
## [1793] { "general",                        
##          "political",                      
##          NA}                0.3041575   139
## [1794] { "general",                        
##          "people",                         
##          "political"}       0.3107221   142
## [1795] { "general",                        
##          "polls",                          
##          "voters"}          0.3326039   152
## [1796] { 
## NA,                             
##          "general",                        
##          "voters"}          0.3566740   163
## [1797] { "general",                        
##          "voters",                         
##          "war"}             0.3041575   139
## [1798] { "general",                        
##          "voters",                         
##          NA}                0.3632385   166
## [1799] { "general",                        
##          "people",                         
##          "voters"}          0.3566740   163
## [1800] { 
## NA,                             
##          "general",                        
##          "polls"}           0.3588621   164
## [1801] { "general",                        
##          "polls",                          
##          "war"}             0.3172867   145
## [1802] { "general",                        
##          "polls",                          
##          NA}                0.3698031   169
## [1803] { "general",                        
##          "people",                         
##          "polls"}           0.3654267   167
## [1804] { 
## NA,                             
##          "general",                        
##          "war"}             0.3150985   144
## [1805] { 
## NA,                             
##          "general",                        
##          NA}                0.4507659   206
## [1806] { 
## NA,                             
##          "general",                        
##          "people"}          0.3873085   177
## [1807] { "general",                        
##          "war",                            
##          NA}                0.3260394   149
## [1808] { "general",                        
##          "people",                         
##          "war"}             0.3347921   153
## [1809] { "general",                        
##          "people",                         
##          NA}                0.3982495   182
## [1810] { "george",                         
##          "polls",                          
##          "races"}           0.3019694   138
## [1811] { 
## NA,                             
##          "george",                         
##          "races"}           0.3063457   140
## [1812] { "george",                         
##          "races",                          
##          NA}                0.3129103   143
## [1813] { "george",                         
##          "people",                         
##          "races"}           0.3107221   142
## [1814] { "american",                       
##          "numbers",                        
##          "races"}           0.3041575   139
## [1815] { "iraq",                           
##          "numbers",                        
##          "races"}           0.3085339   141
## [1816] { "campaign",                       
##          "numbers",                        
##          "races"}           0.3041575   139
## [1817] { "numbers",                        
##          "political",                      
##          "races"}           0.3063457   140
## [1818] { "numbers",                        
##          "races",                          
##          "voters"}          0.3194748   146
## [1819] { "numbers",                        
##          "polls",                          
##          "races"}           0.3216630   147
## [1820] { 
## NA,                             
##          "numbers",                        
##          "races"}           0.3326039   152
## [1821] { "numbers",                        
##          "races",                          
##          "war"}             0.3216630   147
## [1822] { "numbers",                        
##          "races",                          
##          NA}                0.3369803   154
## [1823] { "numbers",                        
##          "people",                         
##          "races"}           0.3326039   152
## [1824] { "american",                       
##          "iraq",                           
##          "races"}           0.3150985   144
## [1825] { "american",                       
##          "campaign",                       
##          "races"}           0.3107221   142
## [1826] { "american",                       
##          "political",                      
##          "races"}           0.3041575   139
## [1827] { "american",                       
##          "races",                          
##          "voters"}          0.3172867   145
## [1828] { "american",                       
##          "polls",                          
##          "races"}           0.3260394   149
## [1829] { 
## NA,                             
##          "american",                       
##          "races"}           0.3326039   152
## [1830] { "american",                       
##          "races",                          
##          "war"}             0.3150985   144
## [1831] { "american",                       
##          "races",                          
##          NA}                0.3391685   155
## [1832] { "american",                       
##          "people",                         
##          "races"}           0.3369803   154
## [1833] { "campaign",                       
##          "iraq",                           
##          "races"}           0.3129103   143
## [1834] { "iraq",                           
##          "political",                      
##          "races"}           0.3129103   143
## [1835] { "iraq",                           
##          "races",                          
##          "voters"}          0.3260394   149
## [1836] { "iraq",                           
##          "polls",                          
##          "races"}           0.3326039   152
## [1837] { 
## NA,                             
##          "iraq",                           
##          "races"}           0.3391685   155
## [1838] { "iraq",                           
##          "races",                          
##          "war"}             0.3260394   149
## [1839] { "iraq",                           
##          "races",                          
##          NA}                0.3457330   158
## [1840] { "iraq",                           
##          "people",                         
##          "races"}           0.3391685   155
## [1841] { "campaign",                       
##          "political",                      
##          "races"}           0.3019694   138
## [1842] { "campaign",                       
##          "races",                          
##          "voters"}          0.3260394   149
## [1843] { "campaign",                       
##          "polls",                          
##          "races"}           0.3435449   157
## [1844] { 
## NA,                             
##          "campaign",                       
##          "races"}           0.3435449   157
## [1845] { "campaign",                       
##          "races",                          
##          "war"}             0.3216630   147
## [1846] { "campaign",                       
##          "races",                          
##          NA}                0.3501094   160
## [1847] { "campaign",                       
##          "people",                         
##          "races"}           0.3457330   158
## [1848] { "political",                      
##          "races",                          
##          "voters"}          0.3129103   143
## [1849] { "political",                      
##          "polls",                          
##          "races"}           0.3172867   145
## [1850] { 
## NA,                             
##          "political",                      
##          "races"}           0.3238512   148
## [1851] { "political",                      
##          "races",                          
##          "war"}             0.3194748   146
## [1852] { "political",                      
##          "races",                          
##          NA}                0.3304158   151
## [1853] { "people",                         
##          "political",                      
##          "races"}           0.3260394   149
## [1854] { "polls",                          
##          "races",                          
##          "voters"}          0.3391685   155
## [1855] { 
## NA,                             
##          "races",                          
##          "voters"}          0.3501094   160
## [1856] { "races",                          
##          "voters",                         
##          "war"}             0.3326039   152
## [1857] { "races",                          
##          "voters",                         
##          NA}                0.3544858   162
## [1858] { "people",                         
##          "races",                          
##          "voters"}          0.3479212   159
## [1859] { 
## NA,                             
##          "administration",                 
##          "races"}           0.3041575   139
## [1860] { "administration",                 
##          "races",                          
##          NA}                0.3107221   142
## [1861] { "administration",                 
##          "people",                         
##          "races"}           0.3085339   141
## [1862] { "races",                          
##          "republicans",                    
##          NA}                0.3019694   138
## [1863] { 
## NA,                             
##          "polls",                          
##          "races"}           0.3610503   165
## [1864] { "polls",                          
##          "races",                          
##          "war"}             0.3391685   155
## [1865] { "polls",                          
##          "races",                          
##          NA}                0.3676149   168
## [1866] { "people",                         
##          "polls",                          
##          "races"}           0.3610503   165
## [1867] { 
## NA,                             
##          "races",                          
##          "war"}             0.3457330   158
## [1868] { 
## NA,                             
##          "races",                          
##          NA}                0.3763676   172
## [1869] { 
## NA,                             
##          "people",                         
##          "races"}           0.3698031   169
## [1870] { "races",                          
##          "war",                            
##          NA}                0.3522976   161
## [1871] { "people",                         
##          "races",                          
##          "war"}             0.3479212   159
## [1872] { "people",                         
##          "races",                          
##          NA}                0.3763676   172
## [1873] { "george",                         
##          "numbers",                        
##          "voters"}          0.3063457   140
## [1874] { "george",                         
##          "numbers",                        
##          "polls"}           0.3085339   141
## [1875] { 
## NA,                             
##          "george",                         
##          "numbers"}         0.3194748   146
## [1876] { "george",                         
##          "numbers",                        
##          "war"}             0.3063457   140
## [1877] { "george",                         
##          "numbers",                        
##          NA}                0.3260394   149
## [1878] { "george",                         
##          "numbers",                        
##          "people"}          0.3172867   145
## [1879] { "american",                       
##          "george",                         
##          "iraq"}            0.3063457   140
## [1880] { "american",                       
##          "george",                         
##          "political"}       0.3041575   139
## [1881] { "american",                       
##          "george",                         
##          "voters"}          0.3107221   142
## [1882] { "american",                       
##          "george",                         
##          "polls"}           0.3172867   145
## [1883] { 
## NA,                             
##          "american",                       
##          "george"}          0.3238512   148
## [1884] { "american",                       
##          "george",                         
##          "war"}             0.3150985   144
## [1885] { "american",                       
##          "george",                         
##          NA}                0.3326039   152
## [1886] { "american",                       
##          "george",                         
##          "people"}          0.3282276   150
## [1887] { "george",                         
##          "iraq",                           
##          "political"}       0.3085339   141
## [1888] { "george",                         
##          "iraq",                           
##          "voters"}          0.3041575   139
## [1889] { "george",                         
##          "iraq",                           
##          "polls"}           0.3085339   141
## [1890] { 
## NA,                             
##          "george",                         
##          "iraq"}            0.3129103   143
## [1891] { "george",                         
##          "iraq",                           
##          "war"}             0.3107221   142
## [1892] { "george",                         
##          "iraq",                           
##          NA}                0.3216630   147
## [1893] { "george",                         
##          "iraq",                           
##          "people"}          0.3216630   147
## [1894] { "campaign",                       
##          "george",                         
##          "voters"}          0.3041575   139
## [1895] { "campaign",                       
##          "george",                         
##          "polls"}           0.3260394   149
## [1896] { 
## NA,                             
##          "campaign",                       
##          "george"}          0.3194748   146
## [1897] { "campaign",                       
##          "george",                         
##          "war"}             0.3085339   141
## [1898] { "campaign",                       
##          "george",                         
##          NA}                0.3304158   151
## [1899] { "campaign",                       
##          "george",                         
##          "people"}          0.3238512   148
## [1900] { "george",                         
##          "political",                      
##          "voters"}          0.3063457   140
## [1901] { "george",                         
##          "political",                      
##          "polls"}           0.3107221   142
## [1902] { 
## NA,                             
##          "george",                         
##          "political"}       0.3129103   143
## [1903] { "george",                         
##          "political",                      
##          "war"}             0.3172867   145
## [1904] { "george",                         
##          "political",                      
##          NA}                0.3238512   148
## [1905] { "george",                         
##          "people",                         
##          "political"}       0.3238512   148
## [1906] { "george",                         
##          "polls",                          
##          "voters"}          0.3238512   148
## [1907] { 
## NA,                             
##          "george",                         
##          "voters"}          0.3304158   151
## [1908] { "george",                         
##          "voters",                         
##          "war"}             0.3216630   147
## [1909] { "george",                         
##          "voters",                         
##          NA}                0.3369803   154
## [1910] { "george",                         
##          "people",                         
##          "voters"}          0.3326039   152
## [1911] { 
## NA,                             
##          "george",                         
##          "polls"}           0.3369803   154
## [1912] { "george",                         
##          "polls",                          
##          "war"}             0.3260394   149
## [1913] { "george",                         
##          "polls",                          
##          NA}                0.3479212   159
## [1914] { "george",                         
##          "people",                         
##          "polls"}           0.3413567   156
## [1915] { 
## NA,                             
##          "george",                         
##          "war"}             0.3282276   150
## [1916] { 
## NA,                             
##          "george",                         
##          NA}                0.3632385   166
## [1917] { 
## NA,                             
##          "george",                         
##          "people"}          0.3501094   160
## [1918] { "george",                         
##          "war",                            
##          NA}                0.3391685   155
## [1919] { "george",                         
##          "people",                         
##          "war"}             0.3369803   154
## [1920] { "george",                         
##          "people",                         
##          NA}                0.3610503   165
## [1921] { 
## NA,                             
##          "sun",                            
##          NA}                0.3216630   147
## [1922] { "people",                         
##          "sun",                            
##          "war"}             0.3041575   139
## [1923] { "people",                         
##          "sun",                            
##          NA}                0.3107221   142
## [1924] { "iraq",                           
##          "war",                            
##          "years"}           0.3041575   139
## [1925] { "iraq",                           
##          "years",                          
##          NA}                0.3063457   140
## [1926] { "iraq",                           
##          "people",                         
##          "years"}           0.3063457   140
## [1927] { "campaign",                       
##          "polls",                          
##          "years"}           0.3019694   138
## [1928] { "campaign",                       
##          "years",                          
##          NA}                0.3041575   139
## [1929] { "campaign",                       
##          "people",                         
##          "years"}           0.3063457   140
## [1930] { "political",                      
##          "war",                            
##          "years"}           0.3150985   144
## [1931] { "political",                      
##          "years",                          
##          NA}                0.3085339   141
## [1932] { "people",                         
##          "political",                      
##          "years"}           0.3129103   143
## [1933] { "voters",                         
##          "war",                            
##          "years"}           0.3019694   138
## [1934] { "voters",                         
##          "years",                          
##          NA}                0.3085339   141
## [1935] { "people",                         
##          "voters",                         
##          "years"}           0.3085339   141
## [1936] { "administration",                 
##          "war",                            
##          "years"}           0.3085339   141
## [1937] { "administration",                 
##          "years",                          
##          NA}                0.3019694   138
## [1938] { "administration",                 
##          "people",                         
##          "years"}           0.3107221   142
## [1939] { "republicans",                    
##          "war",                            
##          "years"}           0.3107221   142
## [1940] { "people",                         
##          "republicans",                    
##          "years"}           0.3107221   142
## [1941] { "polls",                          
##          "war",                            
##          "years"}           0.3085339   141
## [1942] { "polls",                          
##          "years",                          
##          NA}                0.3085339   141
## [1943] { "people",                         
##          "polls",                          
##          "years"}           0.3129103   143
## [1944] { 
## NA,                             
##          "war",                            
##          "years"}           0.3041575   139
## [1945] { 
## NA,                             
##          "years",                          
##          NA}                0.3216630   147
## [1946] { 
## NA,                             
##          "people",                         
##          "years"}           0.3172867   145
## [1947] { "war",                            
##          "years",                          
##          NA}                0.3172867   145
## [1948] { "people",                         
##          "war",                            
##          "years"}           0.3238512   148
## [1949] { "people",                         
##          "years",                          
##          NA}                0.3304158   151
## [1950] { "american",                       
##          "iraq",                           
##          "numbers"}         0.3129103   143
## [1951] { "american",                       
##          "campaign",                       
##          "numbers"}         0.3107221   142
## [1952] { "american",                       
##          "numbers",                        
##          "political"}       0.3107221   142
## [1953] { "american",                       
##          "numbers",                        
##          "voters"}          0.3238512   148
## [1954] { "american",                       
##          "numbers",                        
##          "polls"}           0.3238512   148
## [1955] { 
## NA,                             
##          "american",                       
##          "numbers"}         0.3457330   158
## [1956] { "american",                       
##          "numbers",                        
##          "war"}             0.3194748   146
## [1957] { "american",                       
##          "numbers",                        
##          NA}                0.3501094   160
## [1958] { "american",                       
##          "numbers",                        
##          "people"}          0.3369803   154
## [1959] { "campaign",                       
##          "iraq",                           
##          "numbers"}         0.3063457   140
## [1960] { "iraq",                           
##          "numbers",                        
##          "political"}       0.3216630   147
## [1961] { "iraq",                           
##          "numbers",                        
##          "voters"}          0.3304158   151
## [1962] { "iraq",                           
##          "numbers",                        
##          "polls"}           0.3282276   150
## [1963] { 
## NA,                             
##          "iraq",                           
##          "numbers"}         0.3369803   154
## [1964] { "iraq",                           
##          "numbers",                        
##          "war"}             0.3282276   150
## [1965] { "iraq",                           
##          "numbers",                        
##          NA}                0.3457330   158
## [1966] { "iraq",                           
##          "numbers",                        
##          "people"}          0.3413567   156
## [1967] { "campaign",                       
##          "numbers",                        
##          "political"}       0.3041575   139
## [1968] { "campaign",                       
##          "numbers",                        
##          "voters"}          0.3457330   158
## [1969] { "campaign",                       
##          "numbers",                        
##          "polls"}           0.3522976   161
## [1970] { 
## NA,                             
##          "campaign",                       
##          "numbers"}         0.3676149   168
## [1971] { "campaign",                       
##          "numbers",                        
##          "war"}             0.3216630   147
## [1972] { "campaign",                       
##          "numbers",                        
##          NA}                0.3763676   172
## [1973] { "campaign",                       
##          "numbers",                        
##          "people"}          0.3632385   166
## [1974] { "numbers",                        
##          "political",                      
##          "voters"}          0.3260394   149
## [1975] { "numbers",                        
##          "political",                      
##          "polls"}           0.3238512   148
## [1976] { 
## NA,                             
##          "numbers",                        
##          "political"}       0.3326039   152
## [1977] { "numbers",                        
##          "political",                      
##          "war"}             0.3347921   153
## [1978] { "numbers",                        
##          "political",                      
##          NA}                0.3413567   156
## [1979] { "numbers",                        
##          "people",                         
##          "political"}       0.3369803   154
## [1980] { "administration",                 
##          "numbers",                        
##          "voters"}          0.3041575   139
## [1981] { "numbers",                        
##          "republicans",                    
##          "voters"}          0.3019694   138
## [1982] { "numbers",                        
##          "polls",                          
##          "voters"}          0.3610503   165
## [1983] { 
## NA,                             
##          "numbers",                        
##          "voters"}          0.3829322   175
## [1984] { "numbers",                        
##          "voters",                         
##          "war"}             0.3479212   159
## [1985] { "numbers",                        
##          "voters",                         
##          NA}                0.3916849   179
## [1986] { "numbers",                        
##          "people",                         
##          "voters"}          0.3763676   172
## [1987] { 
## NA,                             
##          "administration",                 
##          "numbers"}         0.3085339   141
## [1988] { "administration",                 
##          "numbers",                        
##          "war"}             0.3107221   142
## [1989] { "administration",                 
##          "numbers",                        
##          NA}                0.3172867   145
## [1990] { "administration",                 
##          "numbers",                        
##          "people"}          0.3150985   144
## [1991] { 
## NA,                             
##          "numbers",                        
##          "republicans"}     0.3063457   140
## [1992] { "numbers",                        
##          "republicans",                    
##          "war"}             0.3085339   141
## [1993] { "numbers",                        
##          "republicans",                    
##          NA}                0.3150985   144
## [1994] { "numbers",                        
##          "people",                         
##          "republicans"}     0.3107221   142
## [1995] { 
## NA,                             
##          "numbers",                        
##          "polls"}           0.3851204   176
## [1996] { "numbers",                        
##          "polls",                          
##          "war"}             0.3457330   158
## [1997] { "numbers",                        
##          "polls",                          
##          NA}                0.3938731   180
## [1998] { "numbers",                        
##          "people",                         
##          "polls"}           0.3807440   174
## [1999] { 
## NA,                             
##          "numbers",                        
##          "war"}             0.3544858   162
## [2000] { 
## NA,                             
##          "numbers",                        
##          NA}                0.4376368   200
## [2001] { 
## NA,                             
##          "numbers",                        
##          "people"}          0.4070022   186
## [2002] { "numbers",                        
##          "war",                            
##          NA}                0.3632385   166
## [2003] { "numbers",                        
##          "people",                         
##          "war"}             0.3566740   163
## [2004] { "numbers",                        
##          "people",                         
##          NA}                0.4157549   190
## [2005] { "american",                       
##          "campaign",                       
##          "iraq"}            0.3129103   143
## [2006] { "american",                       
##          "iraq",                           
##          "political"}       0.3216630   147
## [2007] { "american",                       
##          "iraq",                           
##          "voters"}          0.3282276   150
## [2008] { "administration",                 
##          "american",                       
##          "iraq"}            0.3041575   139
## [2009] { "american",                       
##          "iraq",                           
##          "polls"}           0.3304158   151
## [2010] { 
## NA,                             
##          "american",                       
##          "iraq"}            0.3391685   155
## [2011] { "american",                       
##          "iraq",                           
##          "war"}             0.3282276   150
## [2012] { "american",                       
##          "iraq",                           
##          NA}                0.3457330   158
## [2013] { "american",                       
##          "iraq",                           
##          "people"}          0.3457330   158
## [2014] { "american",                       
##          "campaign",                       
##          "political"}       0.3041575   139
## [2015] { "american",                       
##          "campaign",                       
##          "voters"}          0.3238512   148
## [2016] { "american",                       
##          "campaign",                       
##          "polls"}           0.3457330   158
## [2017] { 
## NA,                             
##          "american",                       
##          "campaign"}        0.3479212   159
## [2018] { "american",                       
##          "campaign",                       
##          "war"}             0.3172867   145
## [2019] { "american",                       
##          "campaign",                       
##          NA}                0.3566740   163
## [2020] { "american",                       
##          "campaign",                       
##          "people"}          0.3479212   159
## [2021] { "american",                       
##          "political",                      
##          "voters"}          0.3194748   146
## [2022] { "administration",                 
##          "american",                       
##          "political"}       0.3085339   141
## [2023] { "american",                       
##          "political",                      
##          "republicans"}     0.3041575   139
## [2024] { "american",                       
##          "political",                      
##          "polls"}           0.3216630   147
## [2025] { 
## NA,                             
##          "american",                       
##          "political"}       0.3282276   150
## [2026] { "american",                       
##          "political",                      
##          "war"}             0.3304158   151
## [2027] { "american",                       
##          "political",                      
##          NA}                0.3369803   154
## [2028] { "american",                       
##          "people",                         
##          "political"}       0.3391685   155
## [2029] { "administration",                 
##          "american",                       
##          "voters"}          0.3063457   140
## [2030] { "american",                       
##          "polls",                          
##          "voters"}          0.3391685   155
## [2031] { 
## NA,                             
##          "american",                       
##          "voters"}          0.3544858   162
## [2032] { "american",                       
##          "voters",                         
##          "war"}             0.3326039   152
## [2033] { "american",                       
##          "voters",                         
##          NA}                0.3588621   164
## [2034] { "american",                       
##          "people",                         
##          "voters"}          0.3522976   161
## [2035] { "administration",                 
##          "american",                       
##          "polls"}           0.3063457   140
## [2036] { 
## NA,                             
##          "administration",                 
##          "american"}        0.3150985   144
## [2037] { "administration",                 
##          "american",                       
##          "war"}             0.3150985   144
## [2038] { "administration",                 
##          "american",                       
##          NA}                0.3238512   148
## [2039] { "administration",                 
##          "american",                       
##          "people"}          0.3238512   148
## [2040] { 
## NA,                             
##          "american",                       
##          "republicans"}     0.3107221   142
## [2041] { "american",                       
##          "republicans",                    
##          "war"}             0.3085339   141
## [2042] { "american",                       
##          "republicans",                    
##          NA}                0.3194748   146
## [2043] { "american",                       
##          "people",                         
##          "republicans"}     0.3150985   144
## [2044] { 
## NA,                             
##          "american",                       
##          "polls"}           0.3610503   165
## [2045] { "american",                       
##          "polls",                          
##          "war"}             0.3347921   153
## [2046] { "american",                       
##          "polls",                          
##          NA}                0.3698031   169
## [2047] { "american",                       
##          "people",                         
##          "polls"}           0.3654267   167
## [2048] { 
## NA,                             
##          "american",                       
##          "war"}             0.3413567   156
## [2049] { 
## NA,                             
##          "american",                       
##          NA}                0.4026258   184
## [2050] { 
## NA,                             
##          "american",                       
##          "people"}          0.3785558   173
## [2051] { "american",                       
##          "war",                            
##          NA}                0.3501094   160
## [2052] { "american",                       
##          "people",                         
##          "war"}             0.3522976   161
## [2053] { "american",                       
##          "people",                         
##          NA}                0.3873085   177
## [2054] { "campaign",                       
##          "iraq",                           
##          "political"}       0.3150985   144
## [2055] { "campaign",                       
##          "iraq",                           
##          "voters"}          0.3347921   153
## [2056] { "campaign",                       
##          "iraq",                           
##          "polls"}           0.3457330   158
## [2057] { 
## NA,                             
##          "campaign",                       
##          "iraq"}            0.3369803   154
## [2058] { "campaign",                       
##          "iraq",                           
##          "war"}             0.3260394   149
## [2059] { "campaign",                       
##          "iraq",                           
##          NA}                0.3479212   159
## [2060] { "campaign",                       
##          "iraq",                           
##          "people"}          0.3457330   158
## [2061] { "iraq",                           
##          "political",                      
##          "voters"}          0.3326039   152
## [2062] { "administration",                 
##          "iraq",                           
##          "political"}       0.3129103   143
## [2063] { "iraq",                           
##          "political",                      
##          "republicans"}     0.3129103   143
## [2064] { "iraq",                           
##          "political",                      
##          "polls"}           0.3326039   152
## [2065] { 
## NA,                             
##          "iraq",                           
##          "political"}       0.3369803   154
## [2066] { "iraq",                           
##          "political",                      
##          "war"}             0.3413567   156
## [2067] { "iraq",                           
##          "political",                      
##          NA}                0.3479212   159
## [2068] { "iraq",                           
##          "people",                         
##          "political"}       0.3457330   158
## [2069] { "administration",                 
##          "iraq",                           
##          "voters"}          0.3107221   142
## [2070] { "iraq",                           
##          "republicans",                    
##          "voters"}          0.3041575   139
## [2071] { "iraq",                           
##          "polls",                          
##          "voters"}          0.3522976   161
## [2072] { 
## NA,                             
##          "iraq",                           
##          "voters"}          0.3566740   163
## [2073] { "iraq",                           
##          "voters",                         
##          "war"}             0.3435449   157
## [2074] { "iraq",                           
##          "voters",                         
##          NA}                0.3654267   167
## [2075] { "iraq",                           
##          "people",                         
##          "voters"}          0.3610503   165
## [2076] { "administration",                 
##          "iraq",                           
##          "polls"}           0.3085339   141
## [2077] { 
## NA,                             
##          "administration",                 
##          "iraq"}            0.3129103   143
## [2078] { "administration",                 
##          "iraq",                           
##          "war"}             0.3172867   145
## [2079] { "administration",                 
##          "iraq",                           
##          NA}                0.3238512   148
## [2080] { "administration",                 
##          "iraq",                           
##          "people"}          0.3238512   148
## [2081] { "iraq",                           
##          "polls",                          
##          "republicans"}     0.3019694   138
## [2082] { 
## NA,                             
##          "iraq",                           
##          "republicans"}     0.3063457   140
## [2083] { "iraq",                           
##          "republicans",                    
##          "war"}             0.3129103   143
## [2084] { "iraq",                           
##          "republicans",                    
##          NA}                0.3172867   145
## [2085] { "iraq",                           
##          "people",                         
##          "republicans"}     0.3172867   145
## [2086] { 
## NA,                             
##          "iraq",                           
##          "polls"}           0.3588621   164
## [2087] { "iraq",                           
##          "polls",                          
##          "war"}             0.3457330   158
## [2088] { "iraq",                           
##          "polls",                          
##          NA}                0.3698031   169
## [2089] { "iraq",                           
##          "people",                         
##          "polls"}           0.3654267   167
## [2090] { 
## NA,                             
##          "iraq",                           
##          "war"}             0.3501094   160
## [2091] { 
## NA,                             
##          "iraq",                           
##          NA}                0.3763676   172
## [2092] { 
## NA,                             
##          "iraq",                           
##          "people"}          0.3698031   169
## [2093] { "iraq",                           
##          "war",                            
##          NA}                0.3610503   165
## [2094] { "iraq",                           
##          "people",                         
##          "war"}             0.3588621   164
## [2095] { "iraq",                           
##          "people",                         
##          NA}                0.3807440   174
## [2096] { "campaign",                       
##          "political",                      
##          "voters"}          0.3194748   146
## [2097] { "administration",                 
##          "campaign",                       
##          "political"}       0.3019694   138
## [2098] { "campaign",                       
##          "political",                      
##          "polls"}           0.3369803   154
## [2099] { 
## NA,                             
##          "campaign",                       
##          "political"}       0.3216630   147
## [2100] { "campaign",                       
##          "political",                      
##          "war"}             0.3326039   152
## [2101] { "campaign",                       
##          "political",                      
##          NA}                0.3347921   153
## [2102] { "campaign",                       
##          "people",                         
##          "political"}       0.3369803   154
## [2103] { "campaign",                       
##          "polls",                          
##          "voters"}          0.3851204   176
## [2104] { 
## NA,                             
##          "campaign",                       
##          "voters"}          0.4070022   186
## [2105] { "campaign",                       
##          "voters",                         
##          "war"}             0.3413567   156
## [2106] { "campaign",                       
##          "voters",                         
##          NA}                0.4157549   190
## [2107] { "campaign",                       
##          "people",                         
##          "voters"}          0.3982495   182
## [2108] { "administration",                 
##          "campaign",                       
##          "polls"}           0.3194748   146
## [2109] { 
## NA,                             
##          "administration",                 
##          "campaign"}        0.3041575   139
## [2110] { "administration",                 
##          "campaign",                       
##          "war"}             0.3129103   143
## [2111] { "administration",                 
##          "campaign",                       
##          NA}                0.3172867   145
## [2112] { "administration",                 
##          "campaign",                       
##          "people"}          0.3216630   147
## [2113] { "campaign",                       
##          "polls",                          
##          "republicans"}     0.3129103   143
## [2114] { "campaign",                       
##          "republicans",                    
##          "war"}             0.3085339   141
## [2115] { "campaign",                       
##          "republicans",                    
##          NA}                0.3107221   142
## [2116] { "campaign",                       
##          "people",                         
##          "republicans"}     0.3150985   144
## [2117] { 
## NA,                             
##          "campaign",                       
##          "polls"}           0.4201313   192
## [2118] { "campaign",                       
##          "polls",                          
##          "war"}             0.3632385   166
## [2119] { "campaign",                       
##          "polls",                          
##          NA}                0.4332604   198
## [2120] { "campaign",                       
##          "people",                         
##          "polls"}           0.4201313   192
## [2121] { 
## NA,                             
##          "campaign",                       
##          "war"}             0.3457330   158
## [2122] { 
## NA,                             
##          "campaign",                       
##          NA}                0.4857768   222
## [2123] { 
## NA,                             
##          "campaign",                       
##          "people"}          0.4420131   202
## [2124] { "campaign",                       
##          "war",                            
##          NA}                0.3588621   164
## [2125] { "campaign",                       
##          "people",                         
##          "war"}             0.3632385   166
## [2126] { "campaign",                       
##          "people",                         
##          NA}                0.4551422   208
## [2127] { "administration",                 
##          "political",                      
##          "voters"}          0.3085339   141
## [2128] { "political",                      
##          "republicans",                    
##          "voters"}          0.3085339   141
## [2129] { "political",                      
##          "polls",                          
##          "voters"}          0.3369803   154
## [2130] { 
## NA,                             
##          "political",                      
##          "voters"}          0.3413567   156
## [2131] { "political",                      
##          "voters",                         
##          "war"}             0.3435449   157
## [2132] { "political",                      
##          "voters",                         
##          NA}                0.3501094   160
## [2133] { "people",                         
##          "political",                      
##          "voters"}          0.3479212   159
## [2134] { "administration",                 
##          "political",                      
##          "republicans"}     0.3085339   141
## [2135] { "administration",                 
##          "political",                      
##          "polls"}           0.3150985   144
## [2136] { 
## NA,                             
##          "administration",                 
##          "political"}       0.3129103   143
## [2137] { "administration",                 
##          "political",                      
##          "war"}             0.3282276   150
## [2138] { "administration",                 
##          "political",                      
##          NA}                0.3260394   149
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##          "people",                         
##          "political"}       0.3304158   151
## [2140] { "political",                      
##          "polls",                          
##          "republicans"}     0.3129103   143
## [2141] { 
## NA,                             
##          "political",                      
##          "republicans"}     0.3107221   142
## [2142] { "political",                      
##          "republicans",                    
##          "war"}             0.3238512   148
## [2143] { "political",                      
##          "republicans",                    
##          NA}                0.3238512   148
## [2144] { "people",                         
##          "political",                      
##          "republicans"}     0.3282276   150
## [2145] { 
## NA,                             
##          "political",                      
##          "polls"}           0.3413567   156
## [2146] { "political",                      
##          "polls",                          
##          "war"}             0.3501094   160
## [2147] { "political",                      
##          "polls",                          
##          NA}                0.3544858   162
## [2148] { "people",                         
##          "political",                      
##          "polls"}           0.3544858   162
## [2149] { 
## NA,                             
##          "political",                      
##          "war"}             0.3479212   159
## [2150] { 
## NA,                             
##          "political",                      
##          NA}                0.3588621   164
## [2151] { 
## NA,                             
##          "people",                         
##          "political"}       0.3544858   162
## [2152] { "political",                      
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##          NA}                0.3610503   165
## [2153] { "people",                         
##          "political",                      
##          "war"}             0.3632385   166
## [2154] { "people",                         
##          "political",                      
##          NA}                0.3676149   168
## [2155] { "administration",                 
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##          "voters"}          0.3129103   143
## [2156] { 
## NA,                             
##          "administration",                 
##          "voters"}          0.3172867   145
## [2157] { "administration",                 
##          "voters",                         
##          "war"}             0.3172867   145
## [2158] { "administration",                 
##          "voters",                         
##          NA}                0.3260394   149
## [2159] { "administration",                 
##          "people",                         
##          "voters"}          0.3260394   149
## [2160] { "polls",                          
##          "republicans",                    
##          "voters"}          0.3085339   141
## [2161] { 
## NA,                             
##          "republicans",                    
##          "voters"}          0.3129103   143
## [2162] { "republicans",                    
##          "voters",                         
##          "war"}             0.3150985   144
## [2163] { "republicans",                    
##          "voters",                         
##          NA}                0.3216630   147
## [2164] { "people",                         
##          "republicans",                    
##          "voters"}          0.3216630   147
## [2165] { 
## NA,                             
##          "polls",                          
##          "voters"}          0.4245077   194
## [2166] { "polls",                          
##          "voters",                         
##          "war"}             0.3632385   166
## [2167] { "polls",                          
##          "voters",                         
##          NA}                0.4332604   198
## [2168] { "people",                         
##          "polls",                          
##          "voters"}          0.4048140   185
## [2169] { 
## NA,                             
##          "voters",                         
##          "war"}             0.3676149   168
## [2170] { 
## NA,                             
##          "voters",                         
##          NA}                0.4835886   221
## [2171] { 
## NA,                             
##          "people",                         
##          "voters"}          0.4442013   203
## [2172] { "voters",                         
##          "war",                            
##          NA}                0.3763676   172
## [2173] { "people",                         
##          "voters",                         
##          "war"}             0.3719912   170
## [2174] { "people",                         
##          "voters",                         
##          NA}                0.4529540   207
## [2175] { "administration",                 
##          "polls",                          
##          "republicans"}     0.3063457   140
## [2176] { 
## NA,                             
##          "administration",                 
##          "republicans"}     0.3063457   140
## [2177] { "administration",                 
##          "republicans",                    
##          "war"}             0.3172867   145
## [2178] { "administration",                 
##          "republicans",                    
##          NA}                0.3194748   146
## [2179] { "administration",                 
##          "people",                         
##          "republicans"}     0.3238512   148
## [2180] { 
## NA,                             
##          "administration",                 
##          "polls"}           0.3150985   144
## [2181] { "administration",                 
##          "polls",                          
##          "war"}             0.3260394   149
## [2182] { "administration",                 
##          "polls",                          
##          NA}                0.3282276   150
## [2183] { "administration",                 
##          "people",                         
##          "polls"}           0.3326039   152
## [2184] { 
## NA,                             
##          "administration",                 
##          "war"}             0.3216630   147
## [2185] { 
## NA,                             
##          "administration",                 
##          NA}                0.3654267   167
## [2186] { 
## NA,                             
##          "administration",                 
##          "people"}          0.3369803   154
## [2187] { "administration",                 
##          "war",                            
##          NA}                0.3347921   153
## [2188] { "administration",                 
##          "people",                         
##          "war"}             0.3413567   156
## [2189] { "administration",                 
##          "people",                         
##          NA}                0.3501094   160
## [2190] { 
## NA,                             
##          "polls",                          
##          "republicans"}     0.3085339   141
## [2191] { "polls",                          
##          "republicans",                    
##          "war"}             0.3216630   147
## [2192] { "polls",                          
##          "republicans",                    
##          NA}                0.3216630   147
## [2193] { "people",                         
##          "polls",                          
##          "republicans"}     0.3260394   149
## [2194] { 
## NA,                             
##          "republicans",                    
##          "war"}             0.3172867   145
## [2195] { 
## NA,                             
##          "republicans",                    
##          NA}                0.3719912   170
## [2196] { 
## NA,                             
##          "people",                         
##          "republicans"}     0.3282276   150
## [2197] { "republicans",                    
##          "war",                            
##          NA}                0.3304158   151
## [2198] { "people",                         
##          "republicans",                    
##          "war"}             0.3369803   154
## [2199] { "people",                         
##          "republicans",                    
##          NA}                0.3413567   156
## [2200] { 
## NA,                             
##          "polls",                          
##          "war"}             0.3698031   169
## [2201] { 
## NA,                             
##          "polls",                          
##          NA}                0.4814004   220
## [2202] { 
## NA,                             
##          "people",                         
##          "polls"}           0.4463895   204
## [2203] { "polls",                          
##          "war",                            
##          NA}                0.3829322   175
## [2204] { "people",                         
##          "polls",                          
##          "war"}             0.3829322   175
## [2205] { "people",                         
##          "polls",                          
##          NA}                0.4595186   210
## [2206] { 
## NA,                             
##          "war",                            
##          NA}                0.3873085   177
## [2207] { 
## NA,                             
##          "people",                         
##          "war"}             0.3807440   174
## [2208] { 
## NA,                             
##          "people",                         
##          NA}                0.5317287   243
## [2209] { "people",                         
##          "war",                            
##          NA}                0.3938731   180
## [2210] { 
## NA,                             
##          "username",                       
##          NA),                              
##         c(NA}               0.3019694   138
## [2211] { "username",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [2212] { 
## NA,                             
##          "username",                       
##          NA,                               
##          NA)}               0.3019694   138
## [2213] { 
## NA,                             
##          "username",                       
##          NA,                               
##         c(NA}               0.3041575   139
## [2214] { 
## NA,                             
##          "bushsux",                        
##          NA),                              
##         c(NA}               0.3085339   141
## [2215] { "bushsux",                        
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [2216] { 
## NA,                             
##          "bushsux",                        
##          NA,                               
##          NA)}               0.3085339   141
## [2217] { 
## NA,                             
##          "bushsux",                        
##          NA,                               
##         c(NA}               0.3085339   141
## [2218] { 
## NA,                             
##          "admin",                          
##          NA),                              
##         c(NA}               0.3019694   138
## [2219] { "admin",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [2220] { 
## NA,                             
##          "admin",                          
##          NA,                               
##          NA)}               0.3019694   138
## [2221] { 
## NA,                             
##          "admin",                          
##          NA,                               
##         c(NA}               0.3063457   140
## [2222] { 
## NA,                             
##          "select",                         
##          NA),                              
##         c(NA}               0.3435449   157
## [2223] { "select",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3435449   157
## [2224] { 
## NA,                             
##          "select",                         
##          NA,                               
##          NA)}               0.3435449   157
## [2225] { 
## NA,                             
##          "select",                         
##          NA,                               
##         c(NA}               0.3457330   158
## [2226] { 
## NA,                             
##          "homepage",                       
##          NA),                              
##         c(NA}               0.3172867   145
## [2227] { "homepage",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3172867   145
## [2228] { 
## NA,                             
##          "homepage",                       
##          NA,                               
##          NA)}               0.3172867   145
## [2229] { 
## NA,                             
##          "homepage",                       
##          NA,                               
##         c(NA}               0.3172867   145
## [2230] { 
## NA,                             
##          "homepage",                       
##          "people",                         
##          NA}                0.3041575   139
## [2231] { 
## NA,                             
##          "section",                        
##          NA),                              
##         c(NA}               0.3194748   146
## [2232] { "section",                        
##          NA,                               
##          NA),                              
##         c(NA}               0.3194748   146
## [2233] { 
## NA,                             
##          "section",                        
##          NA,                               
##          NA)}               0.3194748   146
## [2234] { 
## NA,                             
##          "section",                        
##          NA,                               
##         c(NA}               0.3238512   148
## [2235] { 
## NA,                             
##          "challenge",                      
##          NA),                              
##         c(NA}               0.3676149   168
## [2236] { "challenge",                      
##          NA,                               
##          NA),                              
##         c(NA}               0.3676149   168
## [2237] { "challenge",                      
##          "people",                         
##          NA),                              
##         c(NA}               0.3041575   139
## [2238] { 
## NA,                             
##          "challenge",                      
##          NA,                               
##          NA)}               0.3676149   168
## [2239] { 
## NA,                             
##          "challenge",                      
##          "people",                         
##          NA)}               0.3041575   139
## [2240] { "challenge",                      
##          "people",                         
##          NA,                               
##          NA)}               0.3041575   139
## [2241] { 
## NA,                             
##          "challenge",                      
##          NA,                               
##         c(NA}               0.3763676   172
## [2242] { 
## NA,                             
##          "challenge",                      
##          "people",                         
##         c(NA}               0.3107221   142
## [2243] { "challenge",                      
##          "people",                         
##          NA,                               
##         c(NA}               0.3107221   142
## [2244] { 
## NA,                             
##          "campaign",                       
##          "challenge",                      
##          NA}                0.3063457   140
## [2245] { 
## NA,                             
##          "challenge",                      
##          "voters",                         
##          NA}                0.3172867   145
## [2246] { 
## NA,                             
##          "challenge",                      
##          "polls",                          
##          NA}                0.3085339   141
## [2247] { 
## NA,                             
##          "challenge",                      
##          "people",                         
##          NA}                0.3369803   154
## [2248] { 
## NA,                             
##          "experience",                     
##          NA,                               
##         c(NA}               0.3085339   141
## [2249] { 
## NA,                             
##          "experience",                     
##          "people",                         
##          NA}                0.3107221   142
## [2250] { "general",                        
##          "labor",                          
##          NA),                              
##         c(NA}               0.3041575   139
## [2251] { "campaign",                       
##          "labor",                          
##          NA),                              
##         c(NA}               0.3085339   141
## [2252] { "labor",                          
##          "polls",                          
##          NA),                              
##         c(NA}               0.3129103   143
## [2253] { 
## NA,                             
##          "labor",                          
##          NA),                              
##         c(NA}               0.3873085   177
## [2254] { "labor",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3873085   177
## [2255] { "labor",                          
##          "people",                         
##          NA),                              
##         c(NA}               0.3260394   149
## [2256] { 
## NA,                             
##          "general",                        
##          "labor",                          
##          NA)}               0.3041575   139
## [2257] { "general",                        
##          "labor",                          
##          NA,                               
##          NA)}               0.3041575   139
## [2258] { 
## NA,                             
##          "campaign",                       
##          "labor",                          
##          NA)}               0.3085339   141
## [2259] { "campaign",                       
##          "labor",                          
##          NA,                               
##          NA)}               0.3085339   141
## [2260] { 
## NA,                             
##          "labor",                          
##          "polls",                          
##          NA)}               0.3129103   143
## [2261] { "labor",                          
##          "polls",                          
##          NA,                               
##          NA)}               0.3129103   143
## [2262] { 
## NA,                             
##          "labor",                          
##          NA,                               
##          NA)}               0.3873085   177
## [2263] { 
## NA,                             
##          "labor",                          
##          "people",                         
##          NA)}               0.3260394   149
## [2264] { "labor",                          
##          "people",                         
##          NA,                               
##          NA)}               0.3260394   149
## [2265] { 
## NA,                             
##          "security",                       
##          NA),                              
##         c(NA}               0.3107221   142
## [2266] { "security",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3107221   142
## [2267] { 
## NA,                             
##          "security",                       
##          NA,                               
##          NA)}               0.3107221   142
## [2268] { 
## NA,                             
##          "force",                          
##          NA),                              
##         c(NA}               0.3085339   141
## [2269] { "force",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [2270] { 
## NA,                             
##          "force",                          
##          NA,                               
##          NA)}               0.3085339   141
## [2271] { 
## NA,                             
##          "hard",                           
##          NA),                              
##         c(NA}               0.3019694   138
## [2272] { "hard",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [2273] { 
## NA,                             
##          "hard",                           
##          NA,                               
##          NA)}               0.3019694   138
## [2274] { 
## NA,                             
##          "important",                      
##          NA),                              
##         c(NA}               0.3632385   166
## [2275] { "important",                      
##          NA,                               
##          NA),                              
##         c(NA}               0.3632385   166
## [2276] { "media",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3041575   139
## [2277] { "bushs",                          
##          "media",                          
##          NA),                              
##         c(NA}               0.3019694   138
## [2278] { "general",                        
##          "media",                          
##          NA),                              
##         c(NA}               0.3282276   150
## [2279] { "campaign",                       
##          "media",                          
##          NA),                              
##         c(NA}               0.3150985   144
## [2280] { "media",                          
##          "voters",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [2281] { "media",                          
##          "polls",                          
##          NA),                              
##         c(NA}               0.3129103   143
## [2282] { 
## NA,                             
##          "media",                          
##          NA),                              
##         c(NA}               0.3741794   171
## [2283] { "media",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3741794   171
## [2284] { "media",                          
##          "people",                         
##          NA),                              
##         c(NA}               0.3260394   149
## [2285] { "bushs",                          
##          "national",                       
##          NA),                              
##         c(NA}               0.3019694   138
## [2286] { "general",                        
##          "national",                       
##          NA),                              
##         c(NA}               0.3150985   144
## [2287] { "campaign",                       
##          "national",                       
##          NA),                              
##         c(NA}               0.3063457   140
## [2288] { "national",                       
##          "voters",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [2289] { "national",                       
##          "polls",                          
##          NA),                              
##         c(NA}               0.3107221   142
## [2290] { 
## NA,                             
##          "national",                       
##          NA),                              
##         c(NA}               0.3391685   155
## [2291] { "national",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3391685   155
## [2292] { "national",                       
##          "people",                         
##          NA),                              
##         c(NA}               0.3172867   145
## [2293] { 
## NA,                             
##          "put",                            
##          NA),                              
##         c(NA}               0.3238512   148
## [2294] { "put",                            
##          NA,                               
##          NA),                              
##         c(NA}               0.3238512   148
## [2295] { 
## NA,                             
##          "elections",                      
##          NA),                              
##         c(NA}               0.3085339   141
## [2296] { "elections",                      
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [2297] { 
## NA,                             
##          "candidates",                     
##          NA),                              
##         c(NA}               0.3172867   145
## [2298] { "candidates",                     
##          NA,                               
##          NA),                              
##         c(NA}               0.3172867   145
## [2299] { "candidates",                     
##          "people",                         
##          NA),                              
##         c(NA}               0.3041575   139
## [2300] { 
## NA,                             
##          "meteor",                         
##          NA),                              
##         c(NA}               0.3129103   143
## [2301] { "meteor",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3129103   143
## [2302] { 
## NA,                             
##          "military",                       
##          NA),                              
##         c(NA}               0.3107221   142
## [2303] { "military",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3107221   142
## [2304] { "bushs",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3019694   138
## [2305] { "general",                        
##          "vote",                           
##          NA),                              
##         c(NA}               0.3238512   148
## [2306] { "campaign",                       
##          "vote",                           
##          NA),                              
##         c(NA}               0.3172867   145
## [2307] { "vote",                           
##          "voters",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [2308] { "polls",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3216630   147
## [2309] { 
## NA,                             
##          "vote",                           
##          NA),                              
##         c(NA}               0.3369803   154
## [2310] { "vote",                           
##          NA,                               
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## [2491] { "people",                         
##          "voters",                         
##          NA,                               
##          NA)}               0.3522976   161
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## [2493] { 
## NA,                             
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## [2494] { "people",                         
##          "polls",                          
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## [2495] { 
## NA,                             
##          "people",                         
##          NA,                               
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## [2496] { 
## NA,                             
##          "general",                        
##          "labor",                          
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## [2497] { "general",                        
##          "labor",                          
##          NA,                               
##         c(NA}               0.3063457   140
## [2498] { 
## NA,                             
##          "campaign",                       
##          "labor",                          
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## [2499] { "campaign",                       
##          "labor",                          
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##         c(NA}               0.3107221   142
## [2500] { 
## NA,                             
##          "labor",                          
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## [2501] { "labor",                          
##          "polls",                          
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## [2502] { 
## NA,                             
##          "labor",                          
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## [2503] { 
## NA,                             
##          "labor",                          
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## [2504] { "labor",                          
##          "people",                         
##          NA,                               
##         c(NA}               0.3282276   150
## [2505] { 
## NA,                             
##          "important",                      
##          "labor",                          
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## [2506] { 
## NA,                             
##          "labor",                          
##          "lead",                           
##          NA}                0.3085339   141
## [2507] { 
## NA,                             
##          "general",                        
##          "labor",                          
##          NA}                0.3085339   141
## [2508] { 
## NA,                             
##          "labor",                          
##          "numbers",                        
##          NA}                0.3172867   145
## [2509] { 
## NA,                             
##          "campaign",                       
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##          "voters"}          0.3019694   138
## [2510] { "campaign",                       
##          "labor",                          
##          "voters",                         
##          NA}                0.3019694   138
## [2511] { 
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##          "labor",                          
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## [2512] { "campaign",                       
##          "labor",                          
##          "polls",                          
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## [2513] { "campaign",                       
##          "labor",                          
##          "people",                         
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## [2514] { 
## NA,                             
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## [2515] { 
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## [2516] { "campaign",                       
##          "labor",                          
##          "people",                         
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## [2517] { 
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## [2518] { "labor",                          
##          "polls",                          
##          "voters",                         
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## [2519] { "labor",                          
##          "people",                         
##          "polls",                          
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## [2520] { 
## NA,                             
##          "labor",                          
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## [2521] { 
## NA,                             
##          "labor",                          
##          "people",                         
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## [2522] { "labor",                          
##          "people",                         
##          "voters",                         
##          NA}                0.3216630   147
## [2523] { 
## NA,                             
##          "labor",                          
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## [2524] { 
## NA,                             
##          "labor",                          
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## [2525] { "labor",                          
##          "people",                         
##          "polls",                          
##          NA}                0.3369803   154
## [2526] { 
## NA,                             
##          "labor",                          
##          "people",                         
##          NA}                0.3676149   168
## [2527] { 
## NA,                             
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## [2528] { 
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## [2529] { 
## NA,                             
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##          "security",                       
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## [2530] { 
## NA,                             
##          "people",                         
##          "security",                       
##          NA}                0.3238512   148
## [2531] { 
## NA,                             
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##          "polls",                          
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## [2535] { 
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## [2536] { 
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##          "people"}          0.3085339   141
## [2537] { "campaign",                       
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##          "people",                         
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## [2538] { 
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## [2539] { "force",                          
##          "polls",                          
##          "voters",                         
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## [2540] { 
## NA,                             
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## [2541] { 
## NA,                             
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## [2542] { 
## NA,                             
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##          "people",                         
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## [2543] { "force",                          
##          "people",                         
##          "polls",                          
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## [2544] { 
## NA,                             
##          "force",                          
##          "people",                         
##          NA}                0.3238512   148
## [2545] { 
## NA,                             
##          "attack",                         
##          "people",                         
##          NA}                0.3172867   145
## [2546] { 
## NA,                             
##          "hard",                           
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##         c(NA}               0.3260394   149
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## NA,                             
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##          NA}                0.3019694   138
## [2548] { 
## NA,                             
##          "polls",                          
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##          NA}                0.3041575   139
## [2549] { "people",                         
##          "polls",                          
##          "watch",                          
##          NA}                0.3019694   138
## [2550] { 
## NA,                             
##          "people",                         
##          "watch",                          
##          NA}                0.3107221   142
## [2551] { 
## NA,                             
##          "campaign",                       
##          "congress",                       
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## [2552] { 
## NA,                             
##          "congress",                       
##          "people",                         
##          NA}                0.3019694   138
## [2553] { 
## NA,                             
##          "victory",                        
##          NA,                               
##         c(NA}               0.3085339   141
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## NA,                             
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## [2555] { "campaign",                       
##          "people",                         
##          "victory",                        
##          NA}                0.3041575   139
## [2556] { 
## NA,                             
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##          NA}                0.3129103   143
## [2557] { "people",                         
##          "victory",                        
##          "voters",                         
##          NA}                0.3019694   138
## [2558] { 
## NA,                             
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##          "victory",                        
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## [2559] { 
## NA,                             
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##          "polls",                          
##          "victory"}         0.3041575   139
## [2560] { "people",                         
##          "polls",                          
##          "victory",                        
##          NA}                0.3129103   143
## [2561] { 
## NA,                             
##          "people",                         
##          "victory",                        
##          NA}                0.3282276   150
## [2562] { 
## NA,                             
##          "people",                         
##          "reason",                         
##          NA}                0.3150985   144
## [2563] { 
## NA,                             
##          "general",                        
##          "money",                          
##         c(NA}               0.3150985   144
## [2564] { "general",                        
##          "money",                          
##          NA,                               
##         c(NA}               0.3150985   144
## [2565] { "general",                        
##          "money",                          
##          "people",                         
##         c(NA}               0.3107221   142
## [2566] { 
## NA,                             
##          "money",                          
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##         c(NA}               0.3216630   147
## [2567] { 
## NA,                             
##          "money",                          
##          "people",                         
##         c(NA}               0.3150985   144
## [2568] { "money",                          
##          "people",                         
##          NA,                               
##         c(NA}               0.3150985   144
## [2569] { "general",                        
##          "media",                          
##          "money",                          
##          "vote"}            0.3063457   140
## [2570] { "general",                        
##          "media",                          
##          "money",                          
##          "people"}          0.3063457   140
## [2571] { "general",                        
##          "money",                          
##          "people",                         
##          "vote"}            0.3085339   141
## [2572] { 
## NA,                             
##          "money",                          
##          "vote",                           
##          NA}                0.3019694   138
## [2573] { 
## NA,                             
##          "general",                        
##          "money",                          
##          NA}                0.3172867   145
## [2574] { 
## NA,                             
##          "general",                        
##          "money",                          
##          "people"}          0.3129103   143
## [2575] { "general",                        
##          "money",                          
##          "people",                         
##          NA}                0.3129103   143
## [2576] { 
## NA,                             
##          "money",                          
##          "people",                         
##          NA}                0.3172867   145
## [2577] { 
## NA,                             
##          "find",                           
##          NA,                               
##         c(NA}               0.3063457   140
## [2578] { 
## NA,                             
##          "find",                           
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## [2579] { 
## NA,                             
##          "find",                           
##          "polls",                          
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## [2580] { 
## NA,                             
##          "find",                           
##          "people",                         
##          NA}                0.3194748   146
## [2581] { 
## NA,                             
##          "whats",                          
##          NA,                               
##         c(NA}               0.3041575   139
## [2582] { 
## NA,                             
##          "important",                      
##          NA,                               
##         c(NA}               0.3676149   168
## [2583] { 
## NA,                             
##          "important",                      
##          "people",                         
##         c(NA}               0.3019694   138
## [2584] { "important",                      
##          "people",                         
##          NA,                               
##         c(NA}               0.3019694   138
## [2585] { "media",                          
##          "national",                       
##          "vote",                           
##         c(NA}               0.3041575   139
## [2586] { "general",                        
##          "media",                          
##          "national",                       
##         c(NA}               0.3194748   146
## [2587] { "media",                          
##          "national",                       
##          "voters",                         
##         c(NA}               0.3019694   138
## [2588] { 
## NA,                             
##          "media",                          
##          "national",                       
##         c(NA}               0.3282276   150
## [2589] { "media",                          
##          "national",                       
##          NA,                               
##         c(NA}               0.3282276   150
## [2590] { "media",                          
##          "national",                       
##          "people",                         
##         c(NA}               0.3172867   145
## [2591] { "elections",                      
##          "general",                        
##          "media",                          
##         c(NA}               0.3041575   139
## [2592] { 
## NA,                             
##          "elections",                      
##          "media",                          
##         c(NA}               0.3150985   144
## [2593] { "elections",                      
##          "media",                          
##          NA,                               
##         c(NA}               0.3150985   144
## [2594] { "elections",                      
##          "media",                          
##          "people",                         
##         c(NA}               0.3085339   141
## [2595] { "bushs",                          
##          "media",                          
##          "vote",                           
##         c(NA}               0.3041575   139
## [2596] { "general",                        
##          "media",                          
##          "vote",                           
##         c(NA}               0.3260394   149
## [2597] { "media",                          
##          "polls",                          
##          "vote",                           
##         c(NA}               0.3041575   139
## [2598] { 
## NA,                             
##          "media",                          
##          "vote",                           
##         c(NA}               0.3326039   152
## [2599] { "media",                          
##          "vote",                           
##          NA,                               
##         c(NA}               0.3326039   152
## [2600] { "media",                          
##          "people",                         
##          "vote",                           
##         c(NA}               0.3216630   147
## [2601] { "bushs",                          
##          "general",                        
##          "media",                          
##         c(NA}               0.3107221   142
## [2602] { "bushs",                          
##          "media",                          
##          "polls",                          
##         c(NA}               0.3019694   138
## [2603] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##         c(NA}               0.3238512   148
## [2604] { "bushs",                          
##          "media",                          
##          NA,                               
##         c(NA}               0.3238512   148
## [2605] { "bushs",                          
##          "media",                          
##          "people",                         
##         c(NA}               0.3107221   142
## [2606] { "general",                        
##          "lead",                           
##          "media",                          
##         c(NA}               0.3063457   140
## [2607] { 
## NA,                             
##          "lead",                           
##          "media",                          
##         c(NA}               0.3172867   145
## [2608] { "lead",                           
##          "media",                          
##          NA,                               
##         c(NA}               0.3172867   145
## [2609] { "lead",                           
##          "media",                          
##          "people",                         
##         c(NA}               0.3085339   141
## [2610] { "campaign",                       
##          "general",                        
##          "media",                          
##         c(NA}               0.3172867   145
## [2611] { "general",                        
##          "media",                          
##          "voters",                         
##         c(NA}               0.3172867   145
## [2612] { "general",                        
##          "media",                          
##          "polls",                          
##         c(NA}               0.3150985   144
## [2613] { 
## NA,                             
##          "general",                        
##          "media",                          
##         c(NA}               0.3566740   163
## [2614] { "general",                        
##          "media",                          
##          NA,                               
##         c(NA}               0.3566740   163
## [2615] { "general",                        
##          "media",                          
##          "people",                         
##         c(NA}               0.3413567   156
## [2616] { 
## NA,                             
##          "media",                          
##          "numbers",                        
##         c(NA}               0.3107221   142
## [2617] { "media",                          
##          "numbers",                        
##          NA,                               
##         c(NA}               0.3107221   142
## [2618] { "media",                          
##          "numbers",                        
##          "people",                         
##         c(NA}               0.3019694   138
## [2619] { "campaign",                       
##          "media",                          
##          "polls",                          
##         c(NA}               0.3019694   138
## [2620] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##         c(NA}               0.3238512   148
## [2621] { "campaign",                       
##          "media",                          
##          NA,                               
##         c(NA}               0.3238512   148
## [2622] { "campaign",                       
##          "media",                          
##          "people",                         
##         c(NA}               0.3129103   143
## [2623] { 
## NA,                             
##          "media",                          
##          "voters",                         
##         c(NA}               0.3282276   150
## [2624] { "media",                          
##          "voters",                         
##          NA,                               
##         c(NA}               0.3282276   150
## [2625] { "media",                          
##          "people",                         
##          "voters",                         
##         c(NA}               0.3172867   145
## [2626] { 
## NA,                             
##          "media",                          
##          "polls",                          
##         c(NA}               0.3260394   149
## [2627] { "media",                          
##          "polls",                          
##          NA,                               
##         c(NA}               0.3260394   149
## [2628] { "media",                          
##          "people",                         
##          "polls",                          
##         c(NA}               0.3150985   144
## [2629] { 
## NA,                             
##          "media",                          
##          NA,                               
##         c(NA}               0.4026258   184
## [2630] { 
## NA,                             
##          "media",                          
##          "people",                         
##         c(NA}               0.3544858   162
## [2631] { "media",                          
##          "people",                         
##          NA,                               
##         c(NA}               0.3544858   162
## [2632] { "elections",                      
##          "general",                        
##          "national",                       
##         c(NA}               0.3019694   138
## [2633] { 
## NA,                             
##          "elections",                      
##          "national",                       
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## [2634] { "elections",                      
##          "national",                       
##          NA,                               
##         c(NA}               0.3107221   142
## [2635] { "elections",                      
##          "national",                       
##          "people",                         
##         c(NA}               0.3063457   140
## [2636] { "general",                        
##          "national",                       
##          "vote",                           
##         c(NA}               0.3216630   147
## [2637] { "national",                       
##          "vote",                           
##          "voters",                         
##         c(NA}               0.3019694   138
## [2638] { "national",                       
##          "polls",                          
##          "vote",                           
##         c(NA}               0.3019694   138
## [2639] { 
## NA,                             
##          "national",                       
##          "vote",                           
##         c(NA}               0.3282276   150
## [2640] { "national",                       
##          "vote",                           
##          NA,                               
##         c(NA}               0.3282276   150
## [2641] { "national",                       
##          "people",                         
##          "vote",                           
##         c(NA}               0.3172867   145
## [2642] { "bushs",                          
##          "general",                        
##          "national",                       
##         c(NA}               0.3107221   142
## [2643] { "bushs",                          
##          "national",                       
##          "voters",                         
##         c(NA}               0.3019694   138
## [2644] { "bushs",                          
##          "national",                       
##          "polls",                          
##         c(NA}               0.3041575   139
## [2645] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##         c(NA}               0.3238512   148
## [2646] { "bushs",                          
##          "national",                       
##          NA,                               
##         c(NA}               0.3238512   148
## [2647] { "bushs",                          
##          "national",                       
##          "people",                         
##         c(NA}               0.3129103   143
## [2648] { "general",                        
##          "lead",                           
##          "national",                       
##         c(NA}               0.3019694   138
## [2649] { 
## NA,                             
##          "lead",                           
##          "national",                       
##         c(NA}               0.3129103   143
## [2650] { "lead",                           
##          "national",                       
##          NA,                               
##         c(NA}               0.3129103   143
## [2651] { "lead",                           
##          "national",                       
##          "people",                         
##         c(NA}               0.3041575   139
## [2652] { "campaign",                       
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##          "national",                       
##         c(NA}               0.3085339   141
## [2653] { "general",                        
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##          "voters",                         
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## [2654] { "general",                        
##          "national",                       
##          "polls",                          
##         c(NA}               0.3129103   143
## [2655] { 
## NA,                             
##          "general",                        
##          "national",                       
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## [2656] { "general",                        
##          "national",                       
##          NA,                               
##         c(NA}               0.3457330   158
## [2657] { "general",                        
##          "national",                       
##          "people",                         
##         c(NA}               0.3369803   154
## [2658] { 
## NA,                             
##          "national",                       
##          "numbers",                        
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## [2659] { "national",                       
##          "numbers",                        
##          NA,                               
##         c(NA}               0.3041575   139
## [2660] { 
## NA,                             
##          "campaign",                       
##          "national",                       
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## [2661] { "campaign",                       
##          "national",                       
##          NA,                               
##         c(NA}               0.3150985   144
## [2662] { "campaign",                       
##          "national",                       
##          "people",                         
##         c(NA}               0.3041575   139
## [2663] { "national",                       
##          "polls",                          
##          "voters",                         
##         c(NA}               0.3019694   138
## [2664] { 
## NA,                             
##          "national",                       
##          "voters",                         
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## [2665] { "national",                       
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## [2666] { "national",                       
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## [2667] { 
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## [2669] { "national",                       
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## [2670] { 
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## [2672] { "national",                       
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## NA,                             
##          "place",                          
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##          "vote",                           
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## [2679] { 
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## [2680] { "bushs",                          
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## [2681] { 
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## [2686] { 
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## [2691] { 
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## [2693] { "elections",                      
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##         c(NA}               0.3304158   151
## [2694] { 
## NA,                             
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## [2695] { "candidates",                     
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##          NA,                               
##         c(NA}               0.3019694   138
## [2696] { "candidates",                     
##          "general",                        
##          "people",                         
##         c(NA}               0.3019694   138
## [2697] { 
## NA,                             
##          "campaign",                       
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## [2698] { "campaign",                       
##          "candidates",                     
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## [2699] { 
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## [2700] { 
## NA,                             
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## [2701] { "candidates",                     
##          "people",                         
##          NA,                               
##         c(NA}               0.3216630   147
## [2702] { 
## NA,                             
##          "meteor",                         
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##         c(NA}               0.3260394   149
## [2703] { 
## NA,                             
##          "meteor",                         
##          "people",                         
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## [2704] { "meteor",                         
##          "people",                         
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##         c(NA}               0.3019694   138
## [2705] { 
## NA,                             
##          "military",                       
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##         c(NA}               0.3260394   149
## [2706] { 
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##          "military",                       
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## [2707] { "military",                       
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##          NA,                               
##         c(NA}               0.3107221   142
## [2708] { "bushs",                          
##          "general",                        
##          "vote",                           
##         c(NA}               0.3150985   144
## [2709] { "bushs",                          
##          "polls",                          
##          "vote",                           
##         c(NA}               0.3019694   138
## [2710] { 
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##          "bushs",                          
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##         c(NA}               0.3238512   148
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##          "people",                         
##          "vote",                           
##         c(NA}               0.3129103   143
## [2713] { "general",                        
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## [2714] { 
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## [2715] { "lead",                           
##          "vote",                           
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## [2716] { "lead",                           
##          "people",                         
##          "vote",                           
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##          "voters",                         
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##          "vote",                           
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## [2720] { 
## NA,                             
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##         c(NA}               0.3544858   162
## [2721] { "general",                        
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##          NA,                               
##         c(NA}               0.3544858   162
## [2722] { "general",                        
##          "people",                         
##          "vote",                           
##         c(NA}               0.3435449   157
## [2723] { 
## NA,                             
##          "numbers",                        
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##         c(NA}               0.3085339   141
## [2724] { "numbers",                        
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##          NA,                               
##         c(NA}               0.3085339   141
## [2725] { "numbers",                        
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##         c(NA}               0.3019694   138
## [2726] { "campaign",                       
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##          "vote",                           
##         c(NA}               0.3085339   141
## [2727] { 
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## [2728] { "campaign",                       
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##          NA,                               
##         c(NA}               0.3260394   149
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##         c(NA}               0.3150985   144
## [2730] { "polls",                          
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##          "voters",                         
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## [2731] { 
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##          "vote",                           
##          "voters",                         
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## [2732] { "vote",                           
##          "voters",                         
##          NA,                               
##         c(NA}               0.3304158   151
## [2733] { "people",                         
##          "vote",                           
##          "voters",                         
##         c(NA}               0.3172867   145
## [2734] { 
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##          "polls",                          
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##         c(NA}               0.3369803   154
## [2735] { "polls",                          
##          "vote",                           
##          NA,                               
##         c(NA}               0.3369803   154
## [2736] { "people",                         
##          "polls",                          
##          "vote",                           
##         c(NA}               0.3238512   148
## [2737] { 
## NA,                             
##          "vote",                           
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##         c(NA}               0.3676149   168
## [2738] { 
## NA,                             
##          "people",                         
##          "vote",                           
##         c(NA}               0.3522976   161
## [2739] { "people",                         
##          "vote",                           
##          NA,                               
##         c(NA}               0.3522976   161
## [2740] { 
## NA,                             
##          "report",                         
##          NA,                               
##         c(NA}               0.3150985   144
## [2741] { 
## NA,                             
##          "bushs",                          
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##         c(NA}               0.3107221   142
## [2742] { "bushs",                          
##          "lead",                           
##          NA,                               
##         c(NA}               0.3107221   142
## [2743] { "bushs",                          
##          "campaign",                       
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##         c(NA}               0.3129103   143
## [2744] { "bushs",                          
##          "general",                        
##          "voters",                         
##         c(NA}               0.3085339   141
## [2745] { "bushs",                          
##          "general",                        
##          "polls",                          
##         c(NA}               0.3107221   142
## [2746] { 
## NA,                             
##          "bushs",                          
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## [2747] { "bushs",                          
##          "general",                        
##          NA,                               
##         c(NA}               0.3413567   156
## [2748] { "bushs",                          
##          "general",                        
##          "people",                         
##         c(NA}               0.3260394   149
## [2749] { "bushs",                          
##          "campaign",                       
##          "polls",                          
##         c(NA}               0.3107221   142
## [2750] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
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## [2751] { "bushs",                          
##          "campaign",                       
##          NA,                               
##         c(NA}               0.3238512   148
## [2752] { "bushs",                          
##          "campaign",                       
##          "people",                         
##         c(NA}               0.3107221   142
## [2753] { "bushs",                          
##          "polls",                          
##          "voters",                         
##         c(NA}               0.3063457   140
## [2754] { 
## NA,                             
##          "bushs",                          
##          "voters",                         
##         c(NA}               0.3260394   149
## [2755] { "bushs",                          
##          "voters",                         
##          NA,                               
##         c(NA}               0.3260394   149
## [2756] { "bushs",                          
##          "people",                         
##          "voters",                         
##         c(NA}               0.3085339   141
## [2757] { 
## NA,                             
##          "bushs",                          
##          "polls",                          
##         c(NA}               0.3347921   153
## [2758] { "bushs",                          
##          "polls",                          
##          NA,                               
##         c(NA}               0.3347921   153
## [2759] { "bushs",                          
##          "people",                         
##          "polls",                          
##         c(NA}               0.3150985   144
## [2760] { 
## NA,                             
##          "bushs",                          
##          NA,                               
##         c(NA}               0.3851204   176
## [2761] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##         c(NA}               0.3413567   156
## [2762] { "bushs",                          
##          "people",                         
##          NA,                               
##         c(NA}               0.3413567   156
## [2763] { 
## NA,                             
##          "million",                        
##          "polls",                          
##         c(NA}               0.3041575   139
## [2764] { "million",                        
##          "polls",                          
##          NA,                               
##         c(NA}               0.3041575   139
## [2765] { 
## NA,                             
##          "million",                        
##          NA,                               
##         c(NA}               0.3588621   164
## [2766] { 
## NA,                             
##          "million",                        
##          "people",                         
##         c(NA}               0.3326039   152
## [2767] { "million",                        
##          "people",                         
##          NA,                               
##         c(NA}               0.3326039   152
## [2768] { 
## NA,                             
##          "dem",                            
##          "general",                        
##         c(NA}               0.3041575   139
## [2769] { "dem",                            
##          "general",                        
##          NA,                               
##         c(NA}               0.3041575   139
## [2770] { 
## NA,                             
##          "dem",                            
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##         c(NA}               0.3260394   149
## [2771] { 
## NA,                             
##          "dem",                            
##          "people",                         
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## [2772] { "dem",                            
##          "people",                         
##          NA,                               
##         c(NA}               0.3085339   141
## [2773] { "campaign",                       
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##          "lead",                           
##         c(NA}               0.3041575   139
## [2774] { "general",                        
##          "lead",                           
##          "polls",                          
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## [2775] { 
## NA,                             
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##          "lead",                           
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## [2776] { "general",                        
##          "lead",                           
##          NA,                               
##         c(NA}               0.3369803   154
## [2777] { "general",                        
##          "lead",                           
##          "people",                         
##         c(NA}               0.3260394   149
## [2778] { 
## NA,                             
##          "lead",                           
##          "numbers",                        
##         c(NA}               0.3085339   141
## [2779] { "lead",                           
##          "numbers",                        
##          NA,                               
##         c(NA}               0.3085339   141
## [2780] { 
## NA,                             
##          "campaign",                       
##          "lead",                           
##         c(NA}               0.3216630   147
## [2781] { "campaign",                       
##          "lead",                           
##          NA,                               
##         c(NA}               0.3216630   147
## [2782] { "campaign",                       
##          "lead",                           
##          "people",                         
##         c(NA}               0.3107221   142
## [2783] { 
## NA,                             
##          "lead",                           
##          "voters",                         
##         c(NA}               0.3194748   146
## [2784] { "lead",                           
##          "voters",                         
##          NA,                               
##         c(NA}               0.3194748   146
## [2785] { "lead",                           
##          "people",                         
##          "voters",                         
##         c(NA}               0.3085339   141
## [2786] { 
## NA,                             
##          "lead",                           
##          "polls",                          
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## [2787] { "lead",                           
##          "polls",                          
##          NA,                               
##         c(NA}               0.3260394   149
## [2788] { "lead",                           
##          "people",                         
##          "polls",                          
##         c(NA}               0.3129103   143
## [2789] { 
## NA,                             
##          "lead",                           
##          NA,                               
##         c(NA}               0.3785558   173
## [2790] { 
## NA,                             
##          "lead",                           
##          "people",                         
##         c(NA}               0.3479212   159
## [2791] { "lead",                           
##          "people",                         
##          NA,                               
##         c(NA}               0.3479212   159
## [2792] { 
## NA,                             
##          "general",                        
##          "races",                          
##         c(NA}               0.3085339   141
## [2793] { "general",                        
##          "races",                          
##          NA,                               
##         c(NA}               0.3085339   141
## [2794] { "general",                        
##          "people",                         
##          "races",                          
##         c(NA}               0.3063457   140
## [2795] { 
## NA,                             
##          "general",                        
##          "numbers",                        
##         c(NA}               0.3216630   147
## [2796] { "general",                        
##          "numbers",                        
##          NA,                               
##         c(NA}               0.3216630   147
## [2797] { "general",                        
##          "numbers",                        
##          "people",                         
##         c(NA}               0.3150985   144
## [2798] { 
## NA,                             
##          "american",                       
##          "general",                        
##         c(NA}               0.3085339   141
## [2799] { "american",                       
##          "general",                        
##          NA,                               
##         c(NA}               0.3085339   141
## [2800] { "american",                       
##          "general",                        
##          "people",                         
##         c(NA}               0.3019694   138
## [2801] { 
## NA,                             
##          "general",                        
##          "iraq",                           
##         c(NA}               0.3019694   138
## [2802] { "general",                        
##          "iraq",                           
##          NA,                               
##         c(NA}               0.3019694   138
## [2803] { "campaign",                       
##          "general",                        
##          "voters",                         
##         c(NA}               0.3150985   144
## [2804] { "campaign",                       
##          "general",                        
##          "polls",                          
##         c(NA}               0.3282276   150
## [2805] { 
## NA,                             
##          "campaign",                       
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##         c(NA}               0.3501094   160
## [2806] { "campaign",                       
##          "general",                        
##          NA,                               
##         c(NA}               0.3501094   160
## [2807] { "campaign",                       
##          "general",                        
##          "people",                         
##         c(NA}               0.3369803   154
## [2808] { "general",                        
##          "polls",                          
##          "voters",                         
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## [2809] { 
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## [2810] { "general",                        
##          "voters",                         
##          NA,                               
##         c(NA}               0.3479212   159
## [2811] { "general",                        
##          "people",                         
##          "voters",                         
##         c(NA}               0.3391685   155
## [2812] { 
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##          "general",                        
##          "polls",                          
##         c(NA}               0.3501094   160
## [2813] { "general",                        
##          "polls",                          
##          NA,                               
##         c(NA}               0.3501094   160
## [2814] { "general",                        
##          "people",                         
##          "polls",                          
##         c(NA}               0.3391685   155
## [2815] { 
## NA,                             
##          "general",                        
##          "war",                            
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## [2816] { 
## NA,                             
##          "general",                        
##          NA,                               
##         c(NA}               0.4420131   202
## [2817] { 
## NA,                             
##          "general",                        
##          "people",                         
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## [2818] { "general",                        
##          "war",                            
##          NA,                               
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## [2819] { "general",                        
##          "people",                         
##          "war",                            
##         c(NA}               0.3063457   140
## [2820] { "general",                        
##          "people",                         
##          NA,                               
##         c(NA}               0.3785558   173
## [2821] { 
## NA,                             
##          "races",                          
##          NA,                               
##         c(NA}               0.3129103   143
## [2822] { 
## NA,                             
##          "people",                         
##          "races",                          
##         c(NA}               0.3085339   141
## [2823] { "people",                         
##          "races",                          
##          NA,                               
##         c(NA}               0.3085339   141
## [2824] { 
## NA,                             
##          "campaign",                       
##          "numbers",                        
##         c(NA}               0.3063457   140
## [2825] { "campaign",                       
##          "numbers",                        
##          NA,                               
##         c(NA}               0.3063457   140
## [2826] { 
## NA,                             
##          "numbers",                        
##          "voters",                         
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## [2827] { "numbers",                        
##          "voters",                         
##          NA,                               
##         c(NA}               0.3150985   144
## [2828] { "numbers",                        
##          "people",                         
##          "voters",                         
##         c(NA}               0.3019694   138
## [2829] { 
## NA,                             
##          "numbers",                        
##          "polls",                          
##         c(NA}               0.3172867   145
## [2830] { "numbers",                        
##          "polls",                          
##          NA,                               
##         c(NA}               0.3172867   145
## [2831] { "numbers",                        
##          "people",                         
##          "polls",                          
##         c(NA}               0.3063457   140
## [2832] { 
## NA,                             
##          "numbers",                        
##          NA,                               
##         c(NA}               0.3698031   169
## [2833] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##         c(NA}               0.3413567   156
## [2834] { "numbers",                        
##          "people",                         
##          NA,                               
##         c(NA}               0.3413567   156
## [2835] { 
## NA,                             
##          "american",                       
##          NA,                               
##         c(NA}               0.3347921   153
## [2836] { 
## NA,                             
##          "american",                       
##          "people",                         
##         c(NA}               0.3129103   143
## [2837] { "american",                       
##          "people",                         
##          NA,                               
##         c(NA}               0.3129103   143
## [2838] { 
## NA,                             
##          "iraq",                           
##          NA,                               
##         c(NA}               0.3063457   140
## [2839] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##         c(NA}               0.3019694   138
## [2840] { "iraq",                           
##          "people",                         
##          NA,                               
##         c(NA}               0.3019694   138
## [2841] { "campaign",                       
##          "polls",                          
##          "voters",                         
##         c(NA}               0.3085339   141
## [2842] { 
## NA,                             
##          "campaign",                       
##          "voters",                         
##         c(NA}               0.3413567   156
## [2843] { "campaign",                       
##          "voters",                         
##          NA,                               
##         c(NA}               0.3413567   156
## [2844] { "campaign",                       
##          "people",                         
##          "voters",                         
##         c(NA}               0.3238512   148
## [2845] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##         c(NA}               0.3544858   162
## [2846] { "campaign",                       
##          "polls",                          
##          NA,                               
##         c(NA}               0.3544858   162
## [2847] { "campaign",                       
##          "people",                         
##          "polls",                          
##         c(NA}               0.3369803   154
## [2848] { 
## NA,                             
##          "campaign",                       
##          NA,                               
##         c(NA}               0.4201313   192
## [2849] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##         c(NA}               0.3785558   173
## [2850] { "campaign",                       
##          "people",                         
##          NA,                               
##         c(NA}               0.3785558   173
## [2851] { 
## NA,                             
##          "polls",                          
##          "voters",                         
##         c(NA}               0.3522976   161
## [2852] { "polls",                          
##          "voters",                         
##          NA,                               
##         c(NA}               0.3522976   161
## [2853] { "people",                         
##          "polls",                          
##          "voters",                         
##         c(NA}               0.3238512   148
## [2854] { 
## NA,                             
##          "voters",                         
##          NA,                               
##         c(NA}               0.4113786   188
## [2855] { 
## NA,                             
##          "people",                         
##          "voters",                         
##         c(NA}               0.3741794   171
## [2856] { "people",                         
##          "voters",                         
##          NA,                               
##         c(NA}               0.3741794   171
## [2857] { 
## NA,                             
##          "republicans",                    
##          NA,                               
##         c(NA}               0.3107221   142
## [2858] { 
## NA,                             
##          "polls",                          
##          NA,                               
##         c(NA}               0.4091904   187
## [2859] { 
## NA,                             
##          "people",                         
##          "polls",                          
##         c(NA}               0.3763676   172
## [2860] { "people",                         
##          "polls",                          
##          NA,                               
##         c(NA}               0.3763676   172
## [2861] { 
## NA,                             
##          "war",                            
##          NA,                               
##         c(NA}               0.3150985   144
## [2862] { 
## NA,                             
##          "people",                         
##          "war",                            
##         c(NA}               0.3107221   142
## [2863] { 
## NA,                             
##          "people",                         
##          NA,                               
##         c(NA}               0.4617068   211
## [2864] { "people",                         
##          "war",                            
##          NA,                               
##         c(NA}               0.3107221   142
## [2865] { 
## NA,                             
##          "polls",                          
##          "whats",                          
##          NA}                0.3041575   139
## [2866] { 
## NA,                             
##          "people",                         
##          "whats",                          
##          NA}                0.3063457   140
## [2867] { 
## NA,                             
##          "important",                      
##          "numbers",                        
##          NA}                0.3041575   139
## [2868] { 
## NA,                             
##          "campaign",                       
##          "important",                      
##          "voters"}          0.3019694   138
## [2869] { "campaign",                       
##          "important",                      
##          "voters",                         
##          NA}                0.3107221   142
## [2870] { "campaign",                       
##          "important",                      
##          "people",                         
##          "voters"}          0.3041575   139
## [2871] { 
## NA,                             
##          "campaign",                       
##          "important",                      
##          "polls"}           0.3172867   145
## [2872] { "campaign",                       
##          "important",                      
##          "polls",                          
##          NA}                0.3282276   150
## [2873] { "campaign",                       
##          "important",                      
##          "people",                         
##          "polls"}           0.3194748   146
## [2874] { 
## NA,                             
##          "campaign",                       
##          "important",                      
##          NA}                0.3435449   157
## [2875] { 
## NA,                             
##          "campaign",                       
##          "important",                      
##          "people"}          0.3260394   149
## [2876] { "campaign",                       
##          "important",                      
##          "people",                         
##          NA}                0.3369803   154
## [2877] { 
## NA,                             
##          "important",                      
##          "polls",                          
##          "voters"}          0.3129103   143
## [2878] { "important",                      
##          "polls",                          
##          "voters",                         
##          NA}                0.3216630   147
## [2879] { "important",                      
##          "people",                         
##          "polls",                          
##          "voters"}          0.3063457   140
## [2880] { 
## NA,                             
##          "important",                      
##          "voters",                         
##          NA}                0.3369803   154
## [2881] { 
## NA,                             
##          "important",                      
##          "people",                         
##          "voters"}          0.3172867   145
## [2882] { "important",                      
##          "people",                         
##          "voters",                         
##          NA}                0.3260394   149
## [2883] { 
## NA,                             
##          "important",                      
##          "polls",                          
##          NA}                0.3479212   159
## [2884] { 
## NA,                             
##          "important",                      
##          "people",                         
##          "polls"}           0.3282276   150
## [2885] { "important",                      
##          "people",                         
##          "polls",                          
##          NA}                0.3391685   155
## [2886] { 
## NA,                             
##          "important",                      
##          "people",                         
##          NA}                0.3522976   161
## [2887] { "elections",                      
##          "media",                          
##          "national",                       
##          "vote"}            0.3085339   141
## [2888] { "elections",                      
##          "general",                        
##          "media",                          
##          "national"}        0.3129103   143
## [2889] { "general",                        
##          "media",                          
##          "national",                       
##          "vote"}            0.3238512   148
## [2890] { 
## NA,                             
##          "media",                          
##          "national",                       
##          "vote"}            0.3041575   139
## [2891] { "media",                          
##          "national",                       
##          "vote",                           
##          NA}                0.3041575   139
## [2892] { "media",                          
##          "national",                       
##          "people",                         
##          "vote"}            0.3041575   139
## [2893] { "bushs",                          
##          "general",                        
##          "media",                          
##          "national"}        0.3085339   141
## [2894] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "national"}        0.3194748   146
## [2895] { "general",                        
##          "media",                          
##          "national",                       
##          NA}                0.3194748   146
## [2896] { "general",                        
##          "media",                          
##          "national",                       
##          "people"}          0.3216630   147
## [2897] { 
## NA,                             
##          "media",                          
##          "national",                       
##          "voters"}          0.3019694   138
## [2898] { "media",                          
##          "national",                       
##          "voters",                         
##          NA}                0.3019694   138
## [2899] { 
## NA,                             
##          "media",                          
##          "national",                       
##          NA}                0.3282276   150
## [2900] { 
## NA,                             
##          "media",                          
##          "national",                       
##          "people"}          0.3172867   145
## [2901] { "media",                          
##          "national",                       
##          "people",                         
##          NA}                0.3172867   145
## [2902] { "bushs",                          
##          "elections",                      
##          "media",                          
##          "vote"}            0.3041575   139
## [2903] { "elections",                      
##          "general",                        
##          "media",                          
##          "vote"}            0.3216630   147
## [2904] { "elections",                      
##          "media",                          
##          "people",                         
##          "vote"}            0.3063457   140
## [2905] { "bushs",                          
##          "elections",                      
##          "general",                        
##          "media"}           0.3063457   140
## [2906] { 
## NA,                             
##          "elections",                      
##          "general",                        
##          "media"}           0.3041575   139
## [2907] { "elections",                      
##          "general",                        
##          "media",                          
##          NA}                0.3041575   139
## [2908] { "elections",                      
##          "general",                        
##          "media",                          
##          "people"}          0.3150985   144
## [2909] { 
## NA,                             
##          "elections",                      
##          "media",                          
##          NA}                0.3150985   144
## [2910] { 
## NA,                             
##          "elections",                      
##          "media",                          
##          "people"}          0.3085339   141
## [2911] { "elections",                      
##          "media",                          
##          "people",                         
##          NA}                0.3085339   141
## [2912] { "bushs",                          
##          "general",                        
##          "media",                          
##          "vote"}            0.3216630   147
## [2913] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##          "vote"}            0.3041575   139
## [2914] { "bushs",                          
##          "media",                          
##          "vote",                           
##          NA}                0.3041575   139
## [2915] { "bushs",                          
##          "media",                          
##          "people",                         
##          "vote"}            0.3085339   141
## [2916] { "general",                        
##          "lead",                           
##          "media",                          
##          "vote"}            0.3063457   140
## [2917] { "campaign",                       
##          "general",                        
##          "media",                          
##          "vote"}            0.3063457   140
## [2918] { "general",                        
##          "media",                          
##          "polls",                          
##          "vote"}            0.3063457   140
## [2919] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "vote"}            0.3260394   149
## [2920] { "general",                        
##          "media",                          
##          "vote",                           
##          NA}                0.3260394   149
## [2921] { "general",                        
##          "media",                          
##          "people",                         
##          "vote"}            0.3326039   152
## [2922] { 
## NA,                             
##          "media",                          
##          "polls",                          
##          "vote"}            0.3041575   139
## [2923] { "media",                          
##          "polls",                          
##          "vote",                           
##          NA}                0.3041575   139
## [2924] { 
## NA,                             
##          "media",                          
##          "vote",                           
##          NA}                0.3326039   152
## [2925] { 
## NA,                             
##          "media",                          
##          "people",                         
##          "vote"}            0.3216630   147
## [2926] { "media",                          
##          "people",                         
##          "vote",                           
##          NA}                0.3216630   147
## [2927] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "media"}           0.3107221   142
## [2928] { "bushs",                          
##          "general",                        
##          "media",                          
##          NA}                0.3107221   142
## [2929] { "bushs",                          
##          "general",                        
##          "media",                          
##          "people"}          0.3172867   145
## [2930] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##          "polls"}           0.3019694   138
## [2931] { "bushs",                          
##          "media",                          
##          "polls",                          
##          NA}                0.3019694   138
## [2932] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##          NA}                0.3238512   148
## [2933] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##          "people"}          0.3107221   142
## [2934] { "bushs",                          
##          "media",                          
##          "people",                         
##          NA}                0.3107221   142
## [2935] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "media"}           0.3063457   140
## [2936] { "general",                        
##          "lead",                           
##          "media",                          
##          NA}                0.3063457   140
## [2937] { "general",                        
##          "lead",                           
##          "media",                          
##          "people"}          0.3107221   142
## [2938] { 
## NA,                             
##          "lead",                           
##          "media",                          
##          NA}                0.3172867   145
## [2939] { 
## NA,                             
##          "lead",                           
##          "media",                          
##          "people"}          0.3085339   141
## [2940] { "lead",                           
##          "media",                          
##          "people",                         
##          NA}                0.3085339   141
## [2941] { "campaign",                       
##          "general",                        
##          "media",                          
##          "polls"}           0.3063457   140
## [2942] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "media"}           0.3172867   145
## [2943] { "campaign",                       
##          "general",                        
##          "media",                          
##          NA}                0.3172867   145
## [2944] { "campaign",                       
##          "general",                        
##          "media",                          
##          "people"}          0.3150985   144
## [2945] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "voters"}          0.3172867   145
## [2946] { "general",                        
##          "media",                          
##          "voters",                         
##          NA}                0.3172867   145
## [2947] { "general",                        
##          "media",                          
##          "people",                         
##          "voters"}          0.3107221   142
## [2948] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "polls"}           0.3150985   144
## [2949] { "general",                        
##          "media",                          
##          "polls",                          
##          NA}                0.3150985   144
## [2950] { "general",                        
##          "media",                          
##          "people",                         
##          "polls"}           0.3129103   143
## [2951] { 
## NA,                             
##          "general",                        
##          "media",                          
##          NA}                0.3566740   163
## [2952] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "people"}          0.3413567   156
## [2953] { "general",                        
##          "media",                          
##          "people",                         
##          NA}                0.3413567   156
## [2954] { 
## NA,                             
##          "media",                          
##          "numbers",                        
##          NA}                0.3107221   142
## [2955] { 
## NA,                             
##          "media",                          
##          "numbers",                        
##          "people"}          0.3019694   138
## [2956] { "media",                          
##          "numbers",                        
##          "people",                         
##          NA}                0.3019694   138
## [2957] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##          "polls"}           0.3019694   138
## [2958] { "campaign",                       
##          "media",                          
##          "polls",                          
##          NA}                0.3019694   138
## [2959] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##          NA}                0.3238512   148
## [2960] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##          "people"}          0.3129103   143
## [2961] { "campaign",                       
##          "media",                          
##          "people",                         
##          NA}                0.3129103   143
## [2962] { 
## NA,                             
##          "media",                          
##          "voters",                         
##          NA}                0.3282276   150
## [2963] { 
## NA,                             
##          "media",                          
##          "people",                         
##          "voters"}          0.3172867   145
## [2964] { "media",                          
##          "people",                         
##          "voters",                         
##          NA}                0.3172867   145
## [2965] { 
## NA,                             
##          "media",                          
##          "polls",                          
##          NA}                0.3260394   149
## [2966] { 
## NA,                             
##          "media",                          
##          "people",                         
##          "polls"}           0.3150985   144
## [2967] { "media",                          
##          "people",                         
##          "polls",                          
##          NA}                0.3150985   144
## [2968] { 
## NA,                             
##          "media",                          
##          "people",                         
##          NA}                0.3544858   162
## [2969] { 
## NA,                             
##          "making",                         
##          "polls",                          
##          NA}                0.3085339   141
## [2970] { 
## NA,                             
##          "making",                         
##          "people",                         
##          NA}                0.3150985   144
## [2971] { 
## NA,                             
##          "jan",                            
##          "people",                         
##          NA}                0.3041575   139
## [2972] { 
## NA,                             
##          "bill",                           
##          "polls",                          
##          NA}                0.3019694   138
## [2973] { "bill",                           
##          "people",                         
##          "polls",                          
##          NA}                0.3019694   138
## [2974] { 
## NA,                             
##          "bill",                           
##          "people",                         
##          NA}                0.3194748   146
## [2975] { "elections",                      
##          "general",                        
##          "national",                       
##          "vote"}            0.3129103   143
## [2976] { 
## NA,                             
##          "elections",                      
##          "general",                        
##          "national"}        0.3019694   138
## [2977] { "elections",                      
##          "general",                        
##          "national",                       
##          NA}                0.3019694   138
## [2978] { "elections",                      
##          "general",                        
##          "national",                       
##          "people"}          0.3085339   141
## [2979] { 
## NA,                             
##          "elections",                      
##          "national",                       
##          NA}                0.3107221   142
## [2980] { 
## NA,                             
##          "elections",                      
##          "national",                       
##          "people"}          0.3063457   140
## [2981] { "elections",                      
##          "national",                       
##          "people",                         
##          NA}                0.3063457   140
## [2982] { "bushs",                          
##          "general",                        
##          "national",                       
##          "vote"}            0.3107221   142
## [2983] { "general",                        
##          "national",                       
##          "polls",                          
##          "vote"}            0.3019694   138
## [2984] { 
## NA,                             
##          "general",                        
##          "national",                       
##          "vote"}            0.3238512   148
## [2985] { "general",                        
##          "national",                       
##          "vote",                           
##          NA}                0.3238512   148
## [2986] { "general",                        
##          "national",                       
##          "people",                         
##          "vote"}            0.3238512   148
## [2987] { 
## NA,                             
##          "national",                       
##          "vote",                           
##          "voters"}          0.3063457   140
## [2988] { "national",                       
##          "vote",                           
##          "voters",                         
##          NA}                0.3063457   140
## [2989] { 
## NA,                             
##          "national",                       
##          "polls",                          
##          "vote"}            0.3063457   140
## [2990] { "national",                       
##          "polls",                          
##          "vote",                           
##          NA}                0.3063457   140
## [2991] { 
## NA,                             
##          "national",                       
##          "vote",                           
##          NA}                0.3326039   152
## [2992] { 
## NA,                             
##          "national",                       
##          "people",                         
##          "vote"}            0.3216630   147
## [2993] { "national",                       
##          "people",                         
##          "vote",                           
##          NA}                0.3216630   147
## [2994] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "national"}        0.3107221   142
## [2995] { "bushs",                          
##          "general",                        
##          "national",                       
##          NA}                0.3107221   142
## [2996] { "bushs",                          
##          "general",                        
##          "national",                       
##          "people"}          0.3107221   142
## [2997] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##          "voters"}          0.3019694   138
## [2998] { "bushs",                          
##          "national",                       
##          "voters",                         
##          NA}                0.3019694   138
## [2999] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##          "polls"}           0.3041575   139
## [3000] { "bushs",                          
##          "national",                       
##          "polls",                          
##          NA}                0.3041575   139
## [3001] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##          NA}                0.3238512   148
## [3002] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##          "people"}          0.3129103   143
## [3003] { "bushs",                          
##          "national",                       
##          "people",                         
##          NA}                0.3129103   143
## [3004] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "national"}        0.3019694   138
## [3005] { "general",                        
##          "lead",                           
##          "national",                       
##          NA}                0.3019694   138
## [3006] { "general",                        
##          "lead",                           
##          "national",                       
##          "people"}          0.3019694   138
## [3007] { 
## NA,                             
##          "lead",                           
##          "national",                       
##          NA}                0.3129103   143
## [3008] { 
## NA,                             
##          "lead",                           
##          "national",                       
##          "people"}          0.3041575   139
## [3009] { "lead",                           
##          "national",                       
##          "people",                         
##          NA}                0.3041575   139
## [3010] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "national"}        0.3085339   141
## [3011] { "campaign",                       
##          "general",                        
##          "national",                       
##          NA}                0.3085339   141
## [3012] { "campaign",                       
##          "general",                        
##          "national",                       
##          "people"}          0.3019694   138
## [3013] { 
## NA,                             
##          "general",                        
##          "national",                       
##          "voters"}          0.3194748   146
## [3014] { "general",                        
##          "national",                       
##          "voters",                         
##          NA}                0.3194748   146
## [3015] { "general",                        
##          "national",                       
##          "people",                         
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## [3016] { 
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##          "polls"}           0.3150985   144
## [3017] { "general",                        
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## [3018] { "general",                        
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##          "people",                         
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## [3019] { 
## NA,                             
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## [3020] { 
## NA,                             
##          "general",                        
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## [3021] { "general",                        
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## [3022] { 
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## [3023] { 
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## [3024] { "national",                       
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##          "people",                         
##          NA}                0.3019694   138
## [3025] { 
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## [3026] { 
## NA,                             
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## [3028] { "campaign",                       
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##          "people",                         
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## [3029] { 
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## [3030] { "national",                       
##          "polls",                          
##          "voters",                         
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## [3031] { 
## NA,                             
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## [3032] { 
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## [3033] { "national",                       
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##          "voters",                         
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## [3034] { 
## NA,                             
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## [3035] { 
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## [3036] { "national",                       
##          "people",                         
##          "polls",                          
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## [3037] { 
## NA,                             
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## [3038] { 
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## [3043] { "campaign",                       
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## [3044] { 
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## [3045] { 
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## [3047] { "people",                         
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## [3048] { 
## NA,                             
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## [3049] { 
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## [3050] { "campaign",                       
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##          "voters",                         
##          NA}                0.3041575   139
## [3051] { 
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##          "put"}             0.3150985   144
## [3052] { "campaign",                       
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##          "put",                            
##          NA}                0.3282276   150
## [3053] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "put"}             0.3238512   148
## [3054] { 
## NA,                             
##          "campaign",                       
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##          NA}                0.3369803   154
## [3055] { 
## NA,                             
##          "campaign",                       
##          "people",                         
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## [3056] { "campaign",                       
##          "people",                         
##          "put",                            
##          NA}                0.3347921   153
## [3057] { 
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##          "polls",                          
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## [3058] { "polls",                          
##          "put",                            
##          "voters",                         
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## [3059] { 
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## [3060] { "people",                         
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##          "voters",                         
##          NA}                0.3085339   141
## [3061] { 
## NA,                             
##          "polls",                          
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##          NA}                0.3347921   153
## [3062] { 
## NA,                             
##          "people",                         
##          "polls",                          
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## [3063] { "people",                         
##          "polls",                          
##          "put",                            
##          NA}                0.3326039   152
## [3064] { 
## NA,                             
##          "people",                         
##          "put",                            
##          NA}                0.3391685   155
## [3065] { "campaign",                       
##          "kerrys",                         
##          "polls",                          
##          NA}                0.3107221   142
## [3066] { "campaign",                       
##          "kerrys",                         
##          "people",                         
##          "polls"}           0.3085339   141
## [3067] { 
## NA,                             
##          "campaign",                       
##          "kerrys",                         
##          NA}                0.3107221   142
## [3068] { 
## NA,                             
##          "campaign",                       
##          "kerrys",                         
##          "people"}          0.3019694   138
## [3069] { "campaign",                       
##          "kerrys",                         
##          "people",                         
##          NA}                0.3150985   144
## [3070] { 
## NA,                             
##          "kerrys",                         
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##          NA}                0.3041575   139
## [3071] { "kerrys",                         
##          "people",                         
##          "polls",                          
##          NA}                0.3063457   140
## [3072] { 
## NA,                             
##          "kerrys",                         
##          "people",                         
##          NA}                0.3085339   141
## [3073] { 
## NA,                             
##          "numbers",                        
##          "top",                            
##          NA}                0.3085339   141
## [3074] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "top"}             0.3063457   140
## [3075] { "numbers",                        
##          "people",                         
##          "top",                            
##          NA}                0.3129103   143
## [3076] { 
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##          NA}                0.3041575   139
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##          NA}                0.3063457   140
## [3078] { "polls",                          
##          "top",                            
##          "voters",                         
##          NA}                0.3019694   138
## [3079] { 
## NA,                             
##          "top",                            
##          "voters",                         
##          NA}                0.3172867   145
## [3080] { 
## NA,                             
##          "people",                         
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##          "voters"}          0.3129103   143
## [3081] { "people",                         
##          "top",                            
##          "voters",                         
##          NA}                0.3194748   146
## [3082] { 
## NA,                             
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##          NA}                0.3194748   146
## [3083] { 
## NA,                             
##          "people",                         
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##          "top"}             0.3150985   144
## [3084] { "people",                         
##          "polls",                          
##          "top",                            
##          NA}                0.3216630   147
## [3085] { 
## NA,                             
##          "top",                            
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##          NA}                0.3041575   139
## [3086] { 
## NA,                             
##          "people",                         
##          "top",                            
##          "war"}             0.3019694   138
## [3087] { 
## NA,                             
##          "people",                         
##          "top",                            
##          NA}                0.3391685   155
## [3088] { "people",                         
##          "top",                            
##          "war",                            
##          NA}                0.3085339   141
## [3089] { "bushs",                          
##          "elections",                      
##          "lead",                           
##          "vote"}            0.3019694   138
## [3090] { "bushs",                          
##          "elections",                      
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##          "vote"}            0.3194748   146
## [3091] { "bushs",                          
##          "elections",                      
##          "people",                         
##          "vote"}            0.3085339   141
## [3092] { "elections",                      
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##          "vote"}            0.3107221   142
## [3093] { "elections",                      
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##          "people",                         
##          "vote"}            0.3041575   139
## [3094] { "elections",                      
##          "general",                        
##          "polls",                          
##          "vote"}            0.3085339   141
## [3095] { 
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## [3096] { "elections",                      
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##          "vote",                           
##          "war"}             0.3041575   139
## [3097] { "elections",                      
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##          "vote",                           
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##          "people",                         
##          "vote"}            0.3282276   150
## [3099] { "elections",                      
##          "polls",                          
##          "vote",                           
##          NA}                0.3063457   140
## [3100] { "elections",                      
##          "people",                         
##          "polls",                          
##          "vote"}            0.3063457   140
## [3101] { 
## NA,                             
##          "elections",                      
##          "vote",                           
##          NA}                0.3150985   144
## [3102] { 
## NA,                             
##          "elections",                      
##          "people",                         
##          "vote"}            0.3085339   141
## [3103] { "elections",                      
##          "people",                         
##          "vote",                           
##          "war"}             0.3019694   138
## [3104] { "elections",                      
##          "people",                         
##          "vote",                           
##          NA}                0.3172867   145
## [3105] { "bushs",                          
##          "elections",                      
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##          "lead"}            0.3085339   141
## [3106] { "bushs",                          
##          "elections",                      
##          "lead",                           
##          "people"}          0.3041575   139
## [3107] { "bushs",                          
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##          "general",                        
##          "polls"}           0.3041575   139
## [3108] { "bushs",                          
##          "elections",                      
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## [3109] { "bushs",                          
##          "elections",                      
##          "general",                        
##          "people"}          0.3194748   146
## [3110] { "bushs",                          
##          "elections",                      
##          "polls",                          
##          NA}                0.3085339   141
## [3111] { "bushs",                          
##          "elections",                      
##          "people",                         
##          "polls"}           0.3063457   140
## [3112] { 
## NA,                             
##          "bushs",                          
##          "elections",                      
##          NA}                0.3107221   142
## [3113] { 
## NA,                             
##          "bushs",                          
##          "elections",                      
##          "people"}          0.3019694   138
## [3114] { "bushs",                          
##          "elections",                      
##          "people",                         
##          NA}                0.3150985   144
## [3115] { "elections",                      
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##          "lead",                           
##          NA}                0.3063457   140
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##          "lead",                           
##          "people"}          0.3150985   144
## [3117] { "elections",                      
##          "lead",                           
##          "polls",                          
##          NA}                0.3019694   138
## [3118] { 
## NA,                             
##          "elections",                      
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## [3119] { 
## NA,                             
##          "elections",                      
##          "lead",                           
##          "people"}          0.3019694   138
## [3120] { "elections",                      
##          "lead",                           
##          "people",                         
##          NA}                0.3150985   144
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##          "general",                        
##          "polls"}           0.3041575   139
## [3122] { "campaign",                       
##          "elections",                      
##          "general",                        
##          NA}                0.3019694   138
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##          "elections",                      
##          "general",                        
##          "people"}          0.3063457   140
## [3124] { "elections",                      
##          "general",                        
##          "voters",                         
##          NA}                0.3019694   138
## [3125] { 
## NA,                             
##          "elections",                      
##          "general",                        
##          "polls"}           0.3019694   138
## [3126] { "elections",                      
##          "general",                        
##          "polls",                          
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## [3127] { "elections",                      
##          "general",                        
##          "people",                         
##          "polls"}           0.3150985   144
## [3128] { 
## NA,                             
##          "elections",                      
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##          NA}                0.3238512   148
## [3129] { 
## NA,                             
##          "elections",                      
##          "general",                        
##          "people"}          0.3194748   146
## [3130] { "elections",                      
##          "general",                        
##          "war",                            
##          NA}                0.3019694   138
## [3131] { "elections",                      
##          "general",                        
##          "people",                         
##          "war"}             0.3107221   142
## [3132] { "elections",                      
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##          "people",                         
##          NA}                0.3304158   151
## [3133] { "elections",                      
##          "numbers",                        
##          "people",                         
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## [3134] { "campaign",                       
##          "elections",                      
##          "polls",                          
##          NA}                0.3041575   139
## [3135] { "campaign",                       
##          "elections",                      
##          "people",                         
##          "polls"}           0.3041575   139
## [3136] { "campaign",                       
##          "elections",                      
##          "people",                         
##          NA}                0.3063457   140
## [3137] { 
## NA,                             
##          "elections",                      
##          "voters",                         
##          NA}                0.3085339   141
## [3138] { 
## NA,                             
##          "elections",                      
##          "people",                         
##          "voters"}          0.3019694   138
## [3139] { "elections",                      
##          "people",                         
##          "voters",                         
##          NA}                0.3107221   142
## [3140] { 
## NA,                             
##          "elections",                      
##          "polls",                          
##          NA}                0.3172867   145
## [3141] { 
## NA,                             
##          "elections",                      
##          "people",                         
##          "polls"}           0.3085339   141
## [3142] { "elections",                      
##          "people",                         
##          "polls",                          
##          NA}                0.3216630   147
## [3143] { 
## NA,                             
##          "elections",                      
##          "people",                         
##          NA}                0.3326039   152
## [3144] { "elections",                      
##          "people",                         
##          "war",                            
##          NA}                0.3085339   141
## [3145] { "candidates",                     
##          "general",                        
##          "people",                         
##          "vote"}            0.3041575   139
## [3146] { "bushs",                          
##          "candidates",                     
##          "general",                        
##          "people"}          0.3041575   139
## [3147] { "bushs",                          
##          "campaign",                       
##          "candidates",                     
##          "people"}          0.3041575   139
## [3148] { "bushs",                          
##          "candidates",                     
##          "people",                         
##          "polls"}           0.3019694   138
## [3149] { 
## NA,                             
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##          "candidates",                     
##          NA}                0.3041575   139
## [3150] { "bushs",                          
##          "candidates",                     
##          "people",                         
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## [3151] { "campaign",                       
##          "candidates",                     
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##          "people"}          0.3041575   139
## [3152] { "candidates",                     
##          "lead",                           
##          "people",                         
##          "polls"}           0.3019694   138
## [3153] { 
## NA,                             
##          "candidates",                     
##          "lead",                           
##          NA}                0.3063457   140
## [3154] { 
## NA,                             
##          "candidates",                     
##          "lead",                           
##          "people"}          0.3041575   139
## [3155] { "candidates",                     
##          "lead",                           
##          "people",                         
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## [3156] { "campaign",                       
##          "candidates",                     
##          "general",                        
##          "people"}          0.3063457   140
## [3157] { 
## NA,                             
##          "candidates",                     
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##          NA}                0.3085339   141
## [3158] { 
## NA,                             
##          "candidates",                     
##          "general",                        
##          "people"}          0.3085339   141
## [3159] { "candidates",                     
##          "general",                        
##          "people",                         
##          NA}                0.3194748   146
## [3160] { "candidates",                     
##          "numbers",                        
##          "people",                         
##          NA}                0.3019694   138
## [3161] { 
## NA,                             
##          "campaign",                       
##          "candidates",                     
##          "voters"}          0.3019694   138
## [3162] { "campaign",                       
##          "candidates",                     
##          "voters",                         
##          NA}                0.3107221   142
## [3163] { "campaign",                       
##          "candidates",                     
##          "people",                         
##          "voters"}          0.3129103   143
## [3164] { 
## NA,                             
##          "campaign",                       
##          "candidates",                     
##          "polls"}           0.3041575   139
## [3165] { "campaign",                       
##          "candidates",                     
##          "polls",                          
##          NA}                0.3172867   145
## [3166] { "campaign",                       
##          "candidates",                     
##          "people",                         
##          "polls"}           0.3216630   147
## [3167] { 
## NA,                             
##          "campaign",                       
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## [3168] { 
## NA,                             
##          "campaign",                       
##          "candidates",                     
##          "people"}          0.3238512   148
## [3169] { "campaign",                       
##          "candidates",                     
##          "people",                         
##          "war"}             0.3019694   138
## [3170] { "campaign",                       
##          "candidates",                     
##          "people",                         
##          NA}                0.3369803   154
## [3171] { "candidates",                     
##          "polls",                          
##          "voters",                         
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## [3172] { "candidates",                     
##          "people",                         
##          "polls",                          
##          "voters"}          0.3063457   140
## [3173] { 
## NA,                             
##          "candidates",                     
##          "voters",                         
##          NA}                0.3238512   148
## [3174] { 
## NA,                             
##          "candidates",                     
##          "people",                         
##          "voters"}          0.3216630   147
## [3175] { "candidates",                     
##          "people",                         
##          "voters",                         
##          NA}                0.3304158   151
## [3176] { 
## NA,                             
##          "candidates",                     
##          "polls",                          
##          NA}                0.3194748   146
## [3177] { 
## NA,                             
##          "candidates",                     
##          "people",                         
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## [3178] { "candidates",                     
##          "people",                         
##          "polls",                          
##          "war"}             0.3041575   139
## [3179] { "candidates",                     
##          "people",                         
##          "polls",                          
##          NA}                0.3282276   150
## [3180] { 
## NA,                             
##          "candidates",                     
##          "people",                         
##          NA}                0.3501094   160
## [3181] { "candidates",                     
##          "people",                         
##          "war",                            
##          NA}                0.3085339   141
## [3182] { "lead",                           
##          "meteor",                         
##          "polls",                          
##          NA}                0.3041575   139
## [3183] { "lead",                           
##          "meteor",                         
##          "people",                         
##          "polls"}           0.3019694   138
## [3184] { 
## NA,                             
##          "lead",                           
##          "meteor",                         
##          NA}                0.3041575   139
## [3185] { "lead",                           
##          "meteor",                         
##          "people",                         
##          NA}                0.3063457   140
## [3186] { "meteor",                         
##          "numbers",                        
##          "people",                         
##          NA}                0.3019694   138
## [3187] { "campaign",                       
##          "meteor",                         
##          "voters",                         
##          NA}                0.3085339   141
## [3188] { "campaign",                       
##          "meteor",                         
##          "people",                         
##          "voters"}          0.3041575   139
## [3189] { 
## NA,                             
##          "campaign",                       
##          "meteor",                         
##          "polls"}           0.3172867   145
## [3190] { "campaign",                       
##          "meteor",                         
##          "polls",                          
##          NA}                0.3304158   151
## [3191] { "campaign",                       
##          "meteor",                         
##          "people",                         
##          "polls"}           0.3260394   149
## [3192] { 
## NA,                             
##          "campaign",                       
##          "meteor",                         
##          NA}                0.3391685   155
## [3193] { 
## NA,                             
##          "campaign",                       
##          "meteor",                         
##          "people"}          0.3238512   148
## [3194] { "campaign",                       
##          "meteor",                         
##          "people",                         
##          NA}                0.3369803   154
## [3195] { 
## NA,                             
##          "meteor",                         
##          "polls",                          
##          "voters"}          0.3041575   139
## [3196] { "meteor",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3129103   143
## [3197] { "meteor",                         
##          "people",                         
##          "polls",                          
##          "voters"}          0.3041575   139
## [3198] { 
## NA,                             
##          "meteor",                         
##          "voters",                         
##          NA}                0.3216630   147
## [3199] { 
## NA,                             
##          "meteor",                         
##          "people",                         
##          "voters"}          0.3107221   142
## [3200] { "meteor",                         
##          "people",                         
##          "voters",                         
##          NA}                0.3194748   146
## [3201] { 
## NA,                             
##          "meteor",                         
##          "polls",                          
##          NA}                0.3391685   155
## [3202] { 
## NA,                             
##          "meteor",                         
##          "people",                         
##          "polls"}           0.3238512   148
## [3203] { "meteor",                         
##          "people",                         
##          "polls",                          
##          NA}                0.3369803   154
## [3204] { 
## NA,                             
##          "meteor",                         
##          "people",                         
##          NA}                0.3479212   159
## [3205] { "military",                       
##          "numbers",                        
##          "voters",                         
##          NA}                0.3063457   140
## [3206] { "military",                       
##          "numbers",                        
##          "polls",                          
##          NA}                0.3063457   140
## [3207] { 
## NA,                             
##          "military",                       
##          "numbers",                        
##          NA}                0.3172867   145
## [3208] { 
## NA,                             
##          "military",                       
##          "numbers",                        
##          "people"}          0.3063457   140
## [3209] { "military",                       
##          "numbers",                        
##          "people",                         
##          NA}                0.3150985   144
## [3210] { "american",                       
##          "military",                       
##          "polls",                          
##          NA}                0.3019694   138
## [3211] { 
## NA,                             
##          "american",                       
##          "military",                       
##          NA}                0.3129103   143
## [3212] { 
## NA,                             
##          "american",                       
##          "military",                       
##          "people"}          0.3041575   139
## [3213] { "american",                       
##          "military",                       
##          "people",                         
##          NA}                0.3129103   143
## [3214] { "iraq",                           
##          "military",                       
##          "people",                         
##          NA}                0.3019694   138
## [3215] { "campaign",                       
##          "military",                       
##          "polls",                          
##          "voters"}          0.3063457   140
## [3216] { 
## NA,                             
##          "campaign",                       
##          "military",                       
##          "voters"}          0.3063457   140
## [3217] { "campaign",                       
##          "military",                       
##          "voters",                         
##          NA}                0.3150985   144
## [3218] { "campaign",                       
##          "military",                       
##          "people",                         
##          "voters"}          0.3063457   140
## [3219] { 
## NA,                             
##          "campaign",                       
##          "military",                       
##          "polls"}           0.3194748   146
## [3220] { "campaign",                       
##          "military",                       
##          "polls",                          
##          NA}                0.3326039   152
## [3221] { "campaign",                       
##          "military",                       
##          "people",                         
##          "polls"}           0.3260394   149
## [3222] { 
## NA,                             
##          "campaign",                       
##          "military",                       
##          NA}                0.3369803   154
## [3223] { 
## NA,                             
##          "campaign",                       
##          "military",                       
##          "people"}          0.3260394   149
## [3224] { "campaign",                       
##          "military",                       
##          "people",                         
##          NA}                0.3391685   155
## [3225] { 
## NA,                             
##          "military",                       
##          "polls",                          
##          "voters"}          0.3260394   149
## [3226] { "military",                       
##          "polls",                          
##          "voters",                         
##          NA}                0.3347921   153
## [3227] { "military",                       
##          "people",                         
##          "polls",                          
##          "voters"}          0.3238512   148
## [3228] { 
## NA,                             
##          "military",                       
##          "voters",                         
##          NA}                0.3479212   159
## [3229] { 
## NA,                             
##          "military",                       
##          "people",                         
##          "voters"}          0.3347921   153
## [3230] { "military",                       
##          "voters",                         
##          "war",                            
##          NA}                0.3063457   140
## [3231] { "military",                       
##          "people",                         
##          "voters",                         
##          "war"}             0.3041575   139
## [3232] { "military",                       
##          "people",                         
##          "voters",                         
##          NA}                0.3435449   157
## [3233] { 
## NA,                             
##          "military",                       
##          "polls",                          
##          NA}                0.3544858   162
## [3234] { 
## NA,                             
##          "military",                       
##          "people",                         
##          "polls"}           0.3435449   157
## [3235] { "military",                       
##          "polls",                          
##          "war",                            
##          NA}                0.3107221   142
## [3236] { "military",                       
##          "people",                         
##          "polls",                          
##          "war"}             0.3085339   141
## [3237] { "military",                       
##          "people",                         
##          "polls",                          
##          NA}                0.3566740   163
## [3238] { 
## NA,                             
##          "military",                       
##          "war",                            
##          NA}                0.3085339   141
## [3239] { 
## NA,                             
##          "military",                       
##          "people",                         
##          "war"}             0.3063457   140
## [3240] { 
## NA,                             
##          "military",                       
##          "people",                         
##          NA}                0.3719912   170
## [3241] { "military",                       
##          "people",                         
##          "war",                            
##          NA}                0.3194748   146
## [3242] { "bushs",                          
##          "general",                        
##          "lead",                           
##          "vote"}            0.3129103   143
## [3243] { "bushs",                          
##          "lead",                           
##          "people",                         
##          "vote"}            0.3063457   140
## [3244] { "bushs",                          
##          "campaign",                       
##          "general",                        
##          "vote"}            0.3172867   145
## [3245] { "bushs",                          
##          "general",                        
##          "vote",                           
##          "voters"}          0.3041575   139
## [3246] { "bushs",                          
##          "general",                        
##          "polls",                          
##          "vote"}            0.3172867   145
## [3247] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "vote"}            0.3194748   146
## [3248] { "bushs",                          
##          "general",                        
##          "vote",                           
##          NA}                0.3282276   150
## [3249] { "bushs",                          
##          "general",                        
##          "people",                         
##          "vote"}            0.3347921   153
## [3250] { "bushs",                          
##          "campaign",                       
##          "polls",                          
##          "vote"}            0.3063457   140
## [3251] { "bushs",                          
##          "campaign",                       
##          "vote",                           
##          NA}                0.3085339   141
## [3252] { "bushs",                          
##          "campaign",                       
##          "people",                         
##          "vote"}            0.3085339   141
## [3253] { 
## NA,                             
##          "bushs",                          
##          "vote",                           
##          "voters"}          0.3041575   139
## [3254] { "bushs",                          
##          "vote",                           
##          "voters",                         
##          NA}                0.3085339   141
## [3255] { 
## NA,                             
##          "bushs",                          
##          "polls",                          
##          "vote"}            0.3063457   140
## [3256] { "bushs",                          
##          "polls",                          
##          "vote",                           
##          NA}                0.3150985   144
## [3257] { "bushs",                          
##          "people",                         
##          "polls",                          
##          "vote"}            0.3107221   142
## [3258] { 
## NA,                             
##          "bushs",                          
##          "vote",                           
##          NA}                0.3282276   150
## [3259] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          "vote"}            0.3172867   145
## [3260] { "bushs",                          
##          "people",                         
##          "vote",                           
##          NA}                0.3260394   149
## [3261] { "campaign",                       
##          "general",                        
##          "lead",                           
##          "vote"}            0.3041575   139
## [3262] { "general",                        
##          "lead",                           
##          "polls",                          
##          "vote"}            0.3063457   140
## [3263] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "vote"}            0.3107221   142
## [3264] { "general",                        
##          "lead",                           
##          "vote",                           
##          NA}                0.3194748   146
## [3265] { "general",                        
##          "lead",                           
##          "people",                         
##          "vote"}            0.3260394   149
## [3266] { "lead",                           
##          "polls",                          
##          "vote",                           
##          NA}                0.3063457   140
## [3267] { "lead",                           
##          "people",                         
##          "polls",                          
##          "vote"}            0.3063457   140
## [3268] { 
## NA,                             
##          "lead",                           
##          "vote",                           
##          NA}                0.3216630   147
## [3269] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          "vote"}            0.3129103   143
## [3270] { "lead",                           
##          "people",                         
##          "vote",                           
##          NA}                0.3216630   147
## [3271] { "general",                        
##          "races",                          
##          "vote",                           
##          NA}                0.3019694   138
## [3272] { 
## NA,                             
##          "general",                        
##          "numbers",                        
##          "vote"}            0.3019694   138
## [3273] { "general",                        
##          "numbers",                        
##          "vote",                           
##          NA}                0.3063457   140
## [3274] { "general",                        
##          "numbers",                        
##          "people",                         
##          "vote"}            0.3019694   138
## [3275] { "american",                       
##          "general",                        
##          "vote",                           
##          NA}                0.3063457   140
## [3276] { "american",                       
##          "general",                        
##          "people",                         
##          "vote"}            0.3063457   140
## [3277] { "general",                        
##          "iraq",                           
##          "vote",                           
##          NA}                0.3041575   139
## [3278] { "general",                        
##          "iraq",                           
##          "people",                         
##          "vote"}            0.3041575   139
## [3279] { "campaign",                       
##          "general",                        
##          "vote",                           
##          "voters"}          0.3041575   139
## [3280] { "campaign",                       
##          "general",                        
##          "polls",                          
##          "vote"}            0.3260394   149
## [3281] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "vote"}            0.3260394   149
## [3282] { "campaign",                       
##          "general",                        
##          "vote",                           
##          NA}                0.3347921   153
## [3283] { "campaign",                       
##          "general",                        
##          "people",                         
##          "vote"}            0.3326039   152
## [3284] { "general",                        
##          "polls",                          
##          "vote",                           
##          "voters"}          0.3063457   140
## [3285] { 
## NA,                             
##          "general",                        
##          "vote",                           
##          "voters"}          0.3260394   149
## [3286] { "general",                        
##          "vote",                           
##          "voters",                         
##          NA}                0.3304158   151
## [3287] { "general",                        
##          "people",                         
##          "vote",                           
##          "voters"}          0.3238512   148
## [3288] { 
## NA,                             
##          "general",                        
##          "polls",                          
##          "vote"}            0.3304158   151
## [3289] { "general",                        
##          "polls",                          
##          "vote",                           
##          NA}                0.3391685   155
## [3290] { "general",                        
##          "people",                         
##          "polls",                          
##          "vote"}            0.3369803   154
## [3291] { 
## NA,                             
##          "general",                        
##          "vote",                           
##          NA}                0.3610503   165
## [3292] { 
## NA,                             
##          "general",                        
##          "people",                         
##          "vote"}            0.3501094   160
## [3293] { "general",                        
##          "vote",                           
##          "war",                            
##          NA}                0.3063457   140
## [3294] { "general",                        
##          "people",                         
##          "vote",                           
##          "war"}             0.3150985   144
## [3295] { "general",                        
##          "people",                         
##          "vote",                           
##          NA}                0.3588621   164
## [3296] { 
## NA,                             
##          "races",                          
##          "vote",                           
##          NA}                0.3041575   139
## [3297] { "people",                         
##          "races",                          
##          "vote",                           
##          NA}                0.3041575   139
## [3298] { 
## NA,                             
##          "numbers",                        
##          "vote",                           
##          NA}                0.3129103   143
## [3299] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "vote"}            0.3063457   140
## [3300] { "numbers",                        
##          "people",                         
##          "vote",                           
##          NA}                0.3107221   142
## [3301] { 
## NA,                             
##          "american",                       
##          "vote",                           
##          NA}                0.3041575   139
## [3302] { "american",                       
##          "people",                         
##          "vote",                           
##          NA}                0.3063457   140
## [3303] { 
## NA,                             
##          "iraq",                           
##          "vote",                           
##          NA}                0.3019694   138
## [3304] { "iraq",                           
##          "people",                         
##          "vote",                           
##          NA}                0.3041575   139
## [3305] { 
## NA,                             
##          "campaign",                       
##          "vote",                           
##          "voters"}          0.3019694   138
## [3306] { "campaign",                       
##          "vote",                           
##          "voters",                         
##          NA}                0.3063457   140
## [3307] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "vote"}            0.3129103   143
## [3308] { "campaign",                       
##          "polls",                          
##          "vote",                           
##          NA}                0.3216630   147
## [3309] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "vote"}            0.3194748   146
## [3310] { 
## NA,                             
##          "campaign",                       
##          "vote",                           
##          NA}                0.3304158   151
## [3311] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "vote"}            0.3194748   146
## [3312] { "campaign",                       
##          "people",                         
##          "vote",                           
##          NA}                0.3282276   150
## [3313] { 
## NA,                             
##          "polls",                          
##          "vote",                           
##          "voters"}          0.3129103   143
## [3314] { "polls",                          
##          "vote",                           
##          "voters",                         
##          NA}                0.3172867   145
## [3315] { "people",                         
##          "polls",                          
##          "vote",                           
##          "voters"}          0.3063457   140
## [3316] { 
## NA,                             
##          "vote",                           
##          "voters",                         
##          NA}                0.3391685   155
## [3317] { 
## NA,                             
##          "people",                         
##          "vote",                           
##          "voters"}          0.3260394   149
## [3318] { "people",                         
##          "vote",                           
##          "voters",                         
##          NA}                0.3304158   151
## [3319] { 
## NA,                             
##          "polls",                          
##          "vote",                           
##          NA}                0.3457330   158
## [3320] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "vote"}            0.3326039   152
## [3321] { "people",                         
##          "polls",                          
##          "vote",                           
##          NA}                0.3413567   156
## [3322] { 
## NA,                             
##          "vote",                           
##          "war",                            
##          NA}                0.3041575   139
## [3323] { 
## NA,                             
##          "people",                         
##          "vote",                           
##          "war"}             0.3019694   138
## [3324] { 
## NA,                             
##          "people",                         
##          "vote",                           
##          NA}                0.3610503   165
## [3325] { "people",                         
##          "vote",                           
##          "war",                            
##          NA}                0.3107221   142
## [3326] { 
## NA,                             
##          "numbers",                        
##          "report",                         
##          NA}                0.3063457   140
## [3327] { "numbers",                        
##          "people",                         
##          "report",                         
##          NA}                0.3063457   140
## [3328] { "campaign",                       
##          "polls",                          
##          "report",                         
##          "voters"}          0.3063457   140
## [3329] { 
## NA,                             
##          "campaign",                       
##          "report",                         
##          "voters"}          0.3107221   142
## [3330] { "campaign",                       
##          "report",                         
##          "voters",                         
##          NA}                0.3194748   146
## [3331] { "campaign",                       
##          "people",                         
##          "report",                         
##          "voters"}          0.3063457   140
## [3332] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "report"}          0.3216630   147
## [3333] { "campaign",                       
##          "polls",                          
##          "report",                         
##          NA}                0.3326039   152
## [3334] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "report"}          0.3216630   147
## [3335] { 
## NA,                             
##          "campaign",                       
##          "report",                         
##          NA}                0.3457330   158
## [3336] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "report"}          0.3238512   148
## [3337] { "campaign",                       
##          "people",                         
##          "report",                         
##          NA}                0.3347921   153
## [3338] { 
## NA,                             
##          "polls",                          
##          "report",                         
##          "voters"}          0.3129103   143
## [3339] { "polls",                          
##          "report",                         
##          "voters",                         
##          NA}                0.3216630   147
## [3340] { "people",                         
##          "polls",                          
##          "report",                         
##          "voters"}          0.3085339   141
## [3341] { 
## NA,                             
##          "report",                         
##          "voters",                         
##          NA}                0.3282276   150
## [3342] { 
## NA,                             
##          "people",                         
##          "report",                         
##          "voters"}          0.3107221   142
## [3343] { "people",                         
##          "report",                         
##          "voters",                         
##          NA}                0.3194748   146
## [3344] { 
## NA,                             
##          "polls",                          
##          "report",                         
##          NA}                0.3413567   156
## [3345] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "report"}          0.3260394   149
## [3346] { "polls",                          
##          "report",                         
##          "war",                            
##          NA}                0.3019694   138
## [3347] { "people",                         
##          "polls",                          
##          "report",                         
##          "war"}             0.3019694   138
## [3348] { "people",                         
##          "polls",                          
##          "report",                         
##          NA}                0.3369803   154
## [3349] { 
## NA,                             
##          "people",                         
##          "report",                         
##          NA}                0.3435449   157
## [3350] { "people",                         
##          "report",                         
##          "war",                            
##          NA}                0.3041575   139
## [3351] { "bushs",                          
##          "general",                        
##          "lead",                           
##          "polls"}           0.3019694   138
## [3352] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "lead"}            0.3019694   138
## [3353] { "bushs",                          
##          "general",                        
##          "lead",                           
##          NA}                0.3129103   143
## [3354] { "bushs",                          
##          "general",                        
##          "lead",                           
##          "people"}          0.3194748   146
## [3355] { "bushs",                          
##          "campaign",                       
##          "lead",                           
##          "polls"}           0.3107221   142
## [3356] { "bushs",                          
##          "campaign",                       
##          "lead",                           
##          NA}                0.3129103   143
## [3357] { "bushs",                          
##          "campaign",                       
##          "lead",                           
##          "people"}          0.3129103   143
## [3358] { "bushs",                          
##          "lead",                           
##          "voters",                         
##          NA}                0.3085339   141
## [3359] { "bushs",                          
##          "lead",                           
##          "people",                         
##          "voters"}          0.3019694   138
## [3360] { 
## NA,                             
##          "bushs",                          
##          "lead",                           
##          "polls"}           0.3085339   141
## [3361] { "bushs",                          
##          "lead",                           
##          "polls",                          
##          NA}                0.3216630   147
## [3362] { "bushs",                          
##          "lead",                           
##          "people",                         
##          "polls"}           0.3172867   145
## [3363] { 
## NA,                             
##          "bushs",                          
##          "lead",                           
##          NA}                0.3304158   151
## [3364] { 
## NA,                             
##          "bushs",                          
##          "lead",                           
##          "people"}          0.3172867   145
## [3365] { "bushs",                          
##          "lead",                           
##          "people",                         
##          "war"}             0.3041575   139
## [3366] { "bushs",                          
##          "lead",                           
##          "people",                         
##          NA}                0.3304158   151
## [3367] { "bushs",                          
##          "campaign",                       
##          "general",                        
##          "voters"}          0.3063457   140
## [3368] { "bushs",                          
##          "campaign",                       
##          "general",                        
##          "polls"}           0.3260394   149
## [3369] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
##          "general"}         0.3194748   146
## [3370] { "bushs",                          
##          "campaign",                       
##          "general",                        
##          NA}                0.3304158   151
## [3371] { "bushs",                          
##          "campaign",                       
##          "general",                        
##          "people"}          0.3304158   151
## [3372] { "bushs",                          
##          "general",                        
##          "polls",                          
##          "voters"}          0.3041575   139
## [3373] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "voters"}          0.3150985   144
## [3374] { "bushs",                          
##          "general",                        
##          "voters",                         
##          NA}                0.3216630   147
## [3375] { "bushs",                          
##          "general",                        
##          "people",                         
##          "voters"}          0.3150985   144
## [3376] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "polls"}           0.3172867   145
## [3377] { "bushs",                          
##          "general",                        
##          "polls",                          
##          NA}                0.3282276   150
## [3378] { "bushs",                          
##          "general",                        
##          "people",                         
##          "polls"}           0.3260394   149
## [3379] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          NA}                0.3479212   159
## [3380] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "people"}          0.3326039   152
## [3381] { "bushs",                          
##          "general",                        
##          "people",                         
##          "war"}             0.3085339   141
## [3382] { "bushs",                          
##          "general",                        
##          "people",                         
##          NA}                0.3435449   157
## [3383] { "bushs",                          
##          "numbers",                        
##          "voters",                         
##          NA}                0.3019694   138
## [3384] { "bushs",                          
##          "numbers",                        
##          "polls",                          
##          NA}                0.3019694   138
## [3385] { 
## NA,                             
##          "bushs",                          
##          "numbers",                        
##          NA}                0.3150985   144
## [3386] { 
## NA,                             
##          "bushs",                          
##          "numbers",                        
##          "people"}          0.3063457   140
## [3387] { "bushs",                          
##          "numbers",                        
##          "people",                         
##          NA}                0.3150985   144
## [3388] { "american",                       
##          "bushs",                          
##          "people",                         
##          NA}                0.3019694   138
## [3389] { "bushs",                          
##          "iraq",                           
##          "people",                         
##          NA}                0.3019694   138
## [3390] { "bushs",                          
##          "campaign",                       
##          "polls",                          
##          "voters"}          0.3172867   145
## [3391] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
##          "voters"}          0.3172867   145
## [3392] { "bushs",                          
##          "campaign",                       
##          "voters",                         
##          NA}                0.3260394   149
## [3393] { "bushs",                          
##          "campaign",                       
##          "people",                         
##          "voters"}          0.3172867   145
## [3394] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
##          "polls"}           0.3304158   151
## [3395] { "bushs",                          
##          "campaign",                       
##          "polls",                          
##          "war"}             0.3019694   138
## [3396] { "bushs",                          
##          "campaign",                       
##          "polls",                          
##          NA}                0.3435449   157
## [3397] { "bushs",                          
##          "campaign",                       
##          "people",                         
##          "polls"}           0.3369803   154
## [3398] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
##          NA}                0.3435449   157
## [3399] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
##          "people"}          0.3304158   151
## [3400] { "bushs",                          
##          "campaign",                       
##          "people",                         
##          "war"}             0.3041575   139
## [3401] { "bushs",                          
##          "campaign",                       
##          "people",                         
##          NA}                0.3435449   157
## [3402] { 
## NA,                             
##          "bushs",                          
##          "polls",                          
##          "voters"}          0.3260394   149
## [3403] { "bushs",                          
##          "polls",                          
##          "voters",                         
##          NA}                0.3347921   153
## [3404] { "bushs",                          
##          "people",                         
##          "polls",                          
##          "voters"}          0.3194748   146
## [3405] { 
## NA,                             
##          "bushs",                          
##          "voters",                         
##          NA}                0.3457330   158
## [3406] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          "voters"}          0.3282276   150
## [3407] { "bushs",                          
##          "people",                         
##          "voters",                         
##          NA}                0.3369803   154
## [3408] { 
## NA,                             
##          "bushs",                          
##          "polls",                          
##          NA}                0.3544858   162
## [3409] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          "polls"}           0.3347921   153
## [3410] { "bushs",                          
##          "polls",                          
##          "war",                            
##          NA}                0.3063457   140
## [3411] { "bushs",                          
##          "people",                         
##          "polls",                          
##          "war"}             0.3085339   141
## [3412] { "bushs",                          
##          "people",                         
##          "polls",                          
##          NA}                0.3479212   159
## [3413] { 
## NA,                             
##          "bushs",                          
##          "war",                            
##          NA}                0.3085339   141
## [3414] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          "war"}             0.3041575   139
## [3415] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          NA}                0.3610503   165
## [3416] { "bushs",                          
##          "people",                         
##          "war",                            
##          NA}                0.3172867   145
## [3417] { 
## NA,                             
##          "dem",                            
##          "million",                        
##          NA}                0.3041575   139
## [3418] { "dem",                            
##          "million",                        
##          "people",                         
##          NA}                0.3063457   140
## [3419] { 
## NA,                             
##          "lead",                           
##          "million",                        
##          NA}                0.3063457   140
## [3420] { 
## NA,                             
##          "general",                        
##          "million",                        
##          NA}                0.3019694   138
## [3421] { 
## NA,                             
##          "million",                        
##          "races",                          
##          NA}                0.3063457   140
## [3422] { "million",                        
##          "people",                         
##          "races",                          
##          NA}                0.3041575   139
## [3423] { "campaign",                       
##          "million",                        
##          "numbers",                        
##          NA}                0.3063457   140
## [3424] { 
## NA,                             
##          "million",                        
##          "numbers",                        
##          "voters"}          0.3041575   139
## [3425] { "million",                        
##          "numbers",                        
##          "voters",                         
##          NA}                0.3129103   143
## [3426] { "million",                        
##          "numbers",                        
##          "people",                         
##          "voters"}          0.3063457   140
## [3427] { 
## NA,                             
##          "million",                        
##          "numbers",                        
##          "polls"}           0.3172867   145
## [3428] { "million",                        
##          "numbers",                        
##          "polls",                          
##          NA}                0.3260394   149
## [3429] { "million",                        
##          "numbers",                        
##          "people",                         
##          "polls"}           0.3172867   145
## [3430] { 
## NA,                             
##          "million",                        
##          "numbers",                        
##          NA}                0.3413567   156
## [3431] { 
## NA,                             
##          "million",                        
##          "numbers",                        
##          "people"}          0.3282276   150
## [3432] { "million",                        
##          "numbers",                        
##          "war",                            
##          NA}                0.3085339   141
## [3433] { "million",                        
##          "numbers",                        
##          "people",                         
##          "war"}             0.3041575   139
## [3434] { "million",                        
##          "numbers",                        
##          "people",                         
##          NA}                0.3369803   154
## [3435] { 
## NA,                             
##          "american",                       
##          "million",                        
##          NA}                0.3194748   146
## [3436] { 
## NA,                             
##          "american",                       
##          "million",                        
##          "people"}          0.3041575   139
## [3437] { "american",                       
##          "million",                        
##          "people",                         
##          NA}                0.3085339   141
## [3438] { "iraq",                           
##          "million",                        
##          "polls",                          
##          NA}                0.3019694   138
## [3439] { 
## NA,                             
##          "iraq",                           
##          "million",                        
##          NA}                0.3085339   141
## [3440] { 
## NA,                             
##          "iraq",                           
##          "million",                        
##          "people"}          0.3019694   138
## [3441] { "iraq",                           
##          "million",                        
##          "people",                         
##          NA}                0.3107221   142
## [3442] { 
## NA,                             
##          "campaign",                       
##          "million",                        
##          "voters"}          0.3041575   139
## [3443] { "campaign",                       
##          "million",                        
##          "voters",                         
##          NA}                0.3129103   143
## [3444] { "campaign",                       
##          "million",                        
##          "people",                         
##          "voters"}          0.3063457   140
## [3445] { 
## NA,                             
##          "campaign",                       
##          "million",                        
##          "polls"}           0.3238512   148
## [3446] { "campaign",                       
##          "million",                        
##          "polls",                          
##          NA}                0.3326039   152
## [3447] { "campaign",                       
##          "million",                        
##          "people",                         
##          "polls"}           0.3238512   148
## [3448] { 
## NA,                             
##          "campaign",                       
##          "million",                        
##          NA}                0.3479212   159
## [3449] { 
## NA,                             
##          "campaign",                       
##          "million",                        
##          "people"}          0.3326039   152
## [3450] { "campaign",                       
##          "million",                        
##          "people",                         
##          NA}                0.3413567   156
## [3451] { 
## NA,                             
##          "million",                        
##          "polls",                          
##          "voters"}          0.3216630   147
## [3452] { "million",                        
##          "polls",                          
##          "voters",                         
##          NA}                0.3304158   151
## [3453] { "million",                        
##          "people",                         
##          "polls",                          
##          "voters"}          0.3172867   145
## [3454] { 
## NA,                             
##          "million",                        
##          "voters",                         
##          "war"}             0.3019694   138
## [3455] { 
## NA,                             
##          "million",                        
##          "voters",                         
##          NA}                0.3479212   159
## [3456] { 
## NA,                             
##          "million",                        
##          "people",                         
##          "voters"}          0.3347921   153
## [3457] { "million",                        
##          "voters",                         
##          "war",                            
##          NA}                0.3107221   142
## [3458] { "million",                        
##          "people",                         
##          "voters",                         
##          "war"}             0.3063457   140
## [3459] { "million",                        
##          "people",                         
##          "voters",                         
##          NA}                0.3435449   157
## [3460] { 
## NA,                             
##          "million",                        
##          "polls",                          
##          "war"}             0.3041575   139
## [3461] { 
## NA,                             
##          "million",                        
##          "polls",                          
##          NA}                0.3632385   166
## [3462] { 
## NA,                             
##          "million",                        
##          "people",                         
##          "polls"}           0.3479212   159
## [3463] { "million",                        
##          "polls",                          
##          "war",                            
##          NA}                0.3129103   143
## [3464] { "million",                        
##          "people",                         
##          "polls",                          
##          "war"}             0.3085339   141
## [3465] { "million",                        
##          "people",                         
##          "polls",                          
##          NA}                0.3566740   163
## [3466] { 
## NA,                             
##          "million",                        
##          "war",                            
##          NA}                0.3194748   146
## [3467] { 
## NA,                             
##          "million",                        
##          "people",                         
##          "war"}             0.3150985   144
## [3468] { 
## NA,                             
##          "million",                        
##          "people",                         
##          NA}                0.3894967   178
## [3469] { "million",                        
##          "people",                         
##          "war",                            
##          NA}                0.3238512   148
## [3470] { "polls",                          
##          "sep",                            
##          "voters",                         
##          NA}                0.3041575   139
## [3471] { 
## NA,                             
##          "sep",                            
##          "voters",                         
##          NA}                0.3150985   144
## [3472] { 
## NA,                             
##          "people",                         
##          "sep",                            
##          "voters"}          0.3063457   140
## [3473] { "people",                         
##          "sep",                            
##          "voters",                         
##          NA}                0.3150985   144
## [3474] { 
## NA,                             
##          "polls",                          
##          "sep",                            
##          NA}                0.3107221   142
## [3475] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "sep"}             0.3019694   138
## [3476] { "people",                         
##          "polls",                          
##          "sep",                            
##          NA}                0.3129103   143
## [3477] { 
## NA,                             
##          "people",                         
##          "sep",                            
##          NA}                0.3238512   148
## [3478] { 
## NA,                             
##          "dem",                            
##          "lead",                           
##          NA}                0.3041575   139
## [3479] { "dem",                            
##          "lead",                           
##          "people",                         
##          NA}                0.3063457   140
## [3480] { 
## NA,                             
##          "dem",                            
##          "general",                        
##          NA}                0.3107221   142
## [3481] { 
## NA,                             
##          "dem",                            
##          "general",                        
##          "people"}          0.3063457   140
## [3482] { "dem",                            
##          "general",                        
##          "people",                         
##          NA}                0.3107221   142
## [3483] { 
## NA,                             
##          "dem",                            
##          "polls",                          
##          "races"}           0.3019694   138
## [3484] { "dem",                            
##          "polls",                          
##          "races",                          
##          NA}                0.3063457   140
## [3485] { "dem",                            
##          "people",                         
##          "polls",                          
##          "races"}           0.3019694   138
## [3486] { 
## NA,                             
##          "dem",                            
##          "races",                          
##          NA}                0.3150985   144
## [3487] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          "races"}           0.3107221   142
## [3488] { "dem",                            
##          "races",                          
##          "war",                            
##          NA}                0.3019694   138
## [3489] { "dem",                            
##          "people",                         
##          "races",                          
##          NA}                0.3150985   144
## [3490] { 
## NA,                             
##          "dem",                            
##          "numbers",                        
##          "voters"}          0.3063457   140
## [3491] { "dem",                            
##          "numbers",                        
##          "voters",                         
##          NA}                0.3129103   143
## [3492] { "dem",                            
##          "numbers",                        
##          "people",                         
##          "voters"}          0.3041575   139
## [3493] { 
## NA,                             
##          "dem",                            
##          "numbers",                        
##          "polls"}           0.3063457   140
## [3494] { "dem",                            
##          "numbers",                        
##          "polls",                          
##          NA}                0.3129103   143
## [3495] { "dem",                            
##          "numbers",                        
##          "people",                         
##          "polls"}           0.3085339   141
## [3496] { 
## NA,                             
##          "dem",                            
##          "numbers",                        
##          "war"}             0.3041575   139
## [3497] { 
## NA,                             
##          "dem",                            
##          "numbers",                        
##          NA}                0.3260394   149
## [3498] { 
## NA,                             
##          "dem",                            
##          "numbers",                        
##          "people"}          0.3172867   145
## [3499] { "dem",                            
##          "numbers",                        
##          "war",                            
##          NA}                0.3107221   142
## [3500] { "dem",                            
##          "numbers",                        
##          "people",                         
##          "war"}             0.3063457   140
## [3501] { "dem",                            
##          "numbers",                        
##          "people",                         
##          NA}                0.3238512   148
## [3502] { 
## NA,                             
##          "american",                       
##          "dem",                            
##          NA}                0.3129103   143
## [3503] { 
## NA,                             
##          "american",                       
##          "dem",                            
##          "people"}          0.3085339   141
## [3504] { "american",                       
##          "dem",                            
##          "people",                         
##          NA}                0.3129103   143
## [3505] { 
## NA,                             
##          "dem",                            
##          "iraq",                           
##          "voters"}          0.3019694   138
## [3506] { "dem",                            
##          "iraq",                           
##          "voters",                         
##          NA}                0.3085339   141
## [3507] { "dem",                            
##          "iraq",                           
##          "people",                         
##          "voters"}          0.3063457   140
## [3508] { 
## NA,                             
##          "dem",                            
##          "iraq",                           
##          "polls"}           0.3041575   139
## [3509] { "dem",                            
##          "iraq",                           
##          "polls",                          
##          NA}                0.3107221   142
## [3510] { "dem",                            
##          "iraq",                           
##          "people",                         
##          "polls"}           0.3085339   141
## [3511] { 
## NA,                             
##          "dem",                            
##          "iraq",                           
##          "war"}             0.3041575   139
## [3512] { 
## NA,                             
##          "dem",                            
##          "iraq",                           
##          NA}                0.3194748   146
## [3513] { 
## NA,                             
##          "dem",                            
##          "iraq",                           
##          "people"}          0.3150985   144
## [3514] { "dem",                            
##          "iraq",                           
##          "war",                            
##          NA}                0.3107221   142
## [3515] { "dem",                            
##          "iraq",                           
##          "people",                         
##          "war"}             0.3107221   142
## [3516] { "dem",                            
##          "iraq",                           
##          "people",                         
##          NA}                0.3216630   147
## [3517] { "campaign",                       
##          "dem",                            
##          "polls",                          
##          "voters"}          0.3150985   144
## [3518] { 
## NA,                             
##          "campaign",                       
##          "dem",                            
##          "voters"}          0.3150985   144
## [3519] { "campaign",                       
##          "dem",                            
##          "voters",                         
##          NA}                0.3216630   147
## [3520] { "campaign",                       
##          "dem",                            
##          "people",                         
##          "voters"}          0.3150985   144
## [3521] { 
## NA,                             
##          "campaign",                       
##          "dem",                            
##          "polls"}           0.3282276   150
## [3522] { "campaign",                       
##          "dem",                            
##          "polls",                          
##          "war"}             0.3085339   141
## [3523] { "campaign",                       
##          "dem",                            
##          "polls",                          
##          NA}                0.3347921   153
## [3524] { "campaign",                       
##          "dem",                            
##          "people",                         
##          "polls"}           0.3304158   151
## [3525] { 
## NA,                             
##          "campaign",                       
##          "dem",                            
##          "war"}             0.3041575   139
## [3526] { 
## NA,                             
##          "campaign",                       
##          "dem",                            
##          NA}                0.3391685   155
## [3527] { 
## NA,                             
##          "campaign",                       
##          "dem",                            
##          "people"}          0.3304158   151
## [3528] { "campaign",                       
##          "dem",                            
##          "war",                            
##          NA}                0.3107221   142
## [3529] { "campaign",                       
##          "dem",                            
##          "people",                         
##          "war"}             0.3107221   142
## [3530] { "campaign",                       
##          "dem",                            
##          "people",                         
##          NA}                0.3369803   154
## [3531] { "dem",                            
##          "political",                      
##          "voters",                         
##          NA}                0.3041575   139
## [3532] { "dem",                            
##          "people",                         
##          "political",                      
##          "voters"}          0.3041575   139
## [3533] { "dem",                            
##          "political",                      
##          "polls",                          
##          NA}                0.3041575   139
## [3534] { "dem",                            
##          "people",                         
##          "political",                      
##          "polls"}           0.3041575   139
## [3535] { 
## NA,                             
##          "dem",                            
##          "political",                      
##          "war"}             0.3041575   139
## [3536] { 
## NA,                             
##          "dem",                            
##          "political",                      
##          NA}                0.3129103   143
## [3537] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          "political"}       0.3107221   142
## [3538] { "dem",                            
##          "political",                      
##          "war",                            
##          NA}                0.3107221   142
## [3539] { "dem",                            
##          "people",                         
##          "political",                      
##          "war"}             0.3129103   143
## [3540] { "dem",                            
##          "people",                         
##          "political",                      
##          NA}                0.3172867   145
## [3541] { 
## NA,                             
##          "dem",                            
##          "polls",                          
##          "voters"}          0.3238512   148
## [3542] { "dem",                            
##          "polls",                          
##          "voters",                         
##          "war"}             0.3107221   142
## [3543] { "dem",                            
##          "polls",                          
##          "voters",                         
##          NA}                0.3304158   151
## [3544] { "dem",                            
##          "people",                         
##          "polls",                          
##          "voters"}          0.3238512   148
## [3545] { 
## NA,                             
##          "dem",                            
##          "voters",                         
##          "war"}             0.3150985   144
## [3546] { 
## NA,                             
##          "dem",                            
##          "voters",                         
##          NA}                0.3435449   157
## [3547] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          "voters"}          0.3304158   151
## [3548] { "dem",                            
##          "voters",                         
##          "war",                            
##          NA}                0.3216630   147
## [3549] { "dem",                            
##          "people",                         
##          "voters",                         
##          "war"}             0.3194748   146
## [3550] { "dem",                            
##          "people",                         
##          "voters",                         
##          NA}                0.3369803   154
## [3551] { 
## NA,                             
##          "dem",                            
##          "polls",                          
##          "war"}             0.3194748   146
## [3552] { 
## NA,                             
##          "dem",                            
##          "polls",                          
##          NA}                0.3501094   160
## [3553] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          "polls"}           0.3413567   156
## [3554] { "dem",                            
##          "polls",                          
##          "war",                            
##          NA}                0.3260394   149
## [3555] { "dem",                            
##          "people",                         
##          "polls",                          
##          "war"}             0.3238512   148
## [3556] { "dem",                            
##          "people",                         
##          "polls",                          
##          NA}                0.3479212   159
## [3557] { 
## NA,                             
##          "dem",                            
##          "war",                            
##          NA}                0.3347921   153
## [3558] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          "war"}             0.3304158   151
## [3559] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          NA}                0.3610503   165
## [3560] { "dem",                            
##          "people",                         
##          "war",                            
##          NA}                0.3369803   154
## [3561] { "campaign",                       
##          "general",                        
##          "lead",                           
##          "polls"}           0.3129103   143
## [3562] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "lead"}            0.3107221   142
## [3563] { "campaign",                       
##          "general",                        
##          "lead",                           
##          NA}                0.3216630   147
## [3564] { "campaign",                       
##          "general",                        
##          "lead",                           
##          "people"}          0.3194748   146
## [3565] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "voters"}          0.3041575   139
## [3566] { "general",                        
##          "lead",                           
##          "voters",                         
##          NA}                0.3107221   142
## [3567] { "general",                        
##          "lead",                           
##          "people",                         
##          "voters"}          0.3085339   141
## [3568] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "polls"}           0.3085339   141
## [3569] { "general",                        
##          "lead",                           
##          "polls",                          
##          NA}                0.3194748   146
## [3570] { "general",                        
##          "lead",                           
##          "people",                         
##          "polls"}           0.3194748   146
## [3571] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          NA}                0.3435449   157
## [3572] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "people"}          0.3326039   152
## [3573] { "general",                        
##          "lead",                           
##          "people",                         
##          "war"}             0.3019694   138
## [3574] { "general",                        
##          "lead",                           
##          "people",                         
##          NA}                0.3435449   157
## [3575] { 
## NA,                             
##          "lead",                           
##          "races",                          
##          NA}                0.3041575   139
## [3576] { "lead",                           
##          "people",                         
##          "races",                          
##          NA}                0.3063457   140
## [3577] { "campaign",                       
##          "lead",                           
##          "numbers",                        
##          NA}                0.3041575   139
## [3578] { "lead",                           
##          "numbers",                        
##          "voters",                         
##          NA}                0.3063457   140
## [3579] { "lead",                           
##          "numbers",                        
##          "polls",                          
##          NA}                0.3085339   141
## [3580] { "lead",                           
##          "numbers",                        
##          "people",                         
##          "polls"}           0.3019694   138
## [3581] { 
## NA,                             
##          "lead",                           
##          "numbers",                        
##          NA}                0.3304158   151
## [3582] { 
## NA,                             
##          "lead",                           
##          "numbers",                        
##          "people"}          0.3172867   145
## [3583] { "lead",                           
##          "numbers",                        
##          "people",                         
##          NA}                0.3260394   149
## [3584] { 
## NA,                             
##          "american",                       
##          "lead",                           
##          NA}                0.3085339   141
## [3585] { "american",                       
##          "lead",                           
##          "people",                         
##          NA}                0.3041575   139
## [3586] { "iraq",                           
##          "lead",                           
##          "people",                         
##          NA}                0.3041575   139
## [3587] { "campaign",                       
##          "lead",                           
##          "polls",                          
##          "voters"}          0.3041575   139
## [3588] { 
## NA,                             
##          "campaign",                       
##          "lead",                           
##          "voters"}          0.3107221   142
## [3589] { "campaign",                       
##          "lead",                           
##          "voters",                         
##          NA}                0.3194748   146
## [3590] { "campaign",                       
##          "lead",                           
##          "people",                         
##          "voters"}          0.3172867   145
## [3591] { 
## NA,                             
##          "campaign",                       
##          "lead",                           
##          "polls"}           0.3260394   149
## [3592] { "campaign",                       
##          "lead",                           
##          "polls",                          
##          "war"}             0.3019694   138
## [3593] { "campaign",                       
##          "lead",                           
##          "polls",                          
##          NA}                0.3391685   155
## [3594] { "campaign",                       
##          "lead",                           
##          "people",                         
##          "polls"}           0.3369803   154
## [3595] { 
## NA,                             
##          "campaign",                       
##          "lead",                           
##          NA}                0.3479212   159
## [3596] { 
## NA,                             
##          "campaign",                       
##          "lead",                           
##          "people"}          0.3369803   154
## [3597] { "campaign",                       
##          "lead",                           
##          "people",                         
##          "war"}             0.3041575   139
## [3598] { "campaign",                       
##          "lead",                           
##          "people",                         
##          NA}                0.3501094   160
## [3599] { 
## NA,                             
##          "lead",                           
##          "polls",                          
##          "voters"}          0.3129103   143
## [3600] { "lead",                           
##          "polls",                          
##          "voters",                         
##          NA}                0.3216630   147
## [3601] { "lead",                           
##          "people",                         
##          "polls",                          
##          "voters"}          0.3150985   144
## [3602] { 
## NA,                             
##          "lead",                           
##          "voters",                         
##          NA}                0.3457330   158
## [3603] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          "voters"}          0.3347921   153
## [3604] { "lead",                           
##          "people",                         
##          "voters",                         
##          NA}                0.3435449   157
## [3605] { 
## NA,                             
##          "lead",                           
##          "polls",                          
##          NA}                0.3522976   161
## [3606] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          "polls"}           0.3391685   155
## [3607] { "lead",                           
##          "polls",                          
##          "war",                            
##          NA}                0.3063457   140
## [3608] { "lead",                           
##          "people",                         
##          "polls",                          
##          "war"}             0.3107221   142
## [3609] { "lead",                           
##          "people",                         
##          "polls",                          
##          NA}                0.3522976   161
## [3610] { 
## NA,                             
##          "lead",                           
##          "war",                            
##          NA}                0.3085339   141
## [3611] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          "war"}             0.3063457   140
## [3612] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          NA}                0.3741794   171
## [3613] { "lead",                           
##          "people",                         
##          "war",                            
##          NA}                0.3194748   146
## [3614] { "general",                        
##          "polls",                          
##          "races",                          
##          NA}                0.3041575   139
## [3615] { "general",                        
##          "people",                         
##          "polls",                          
##          "races"}           0.3019694   138
## [3616] { 
## NA,                             
##          "general",                        
##          "races",                          
##          NA}                0.3150985   144
## [3617] { 
## NA,                             
##          "general",                        
##          "people",                         
##          "races"}           0.3129103   143
## [3618] { "general",                        
##          "people",                         
##          "races",                          
##          NA}                0.3172867   145
## [3619] { "general",                        
##          "numbers",                        
##          "voters",                         
##          NA}                0.3019694   138
## [3620] { "general",                        
##          "numbers",                        
##          "polls",                          
##          NA}                0.3019694   138
## [3621] { 
## NA,                             
##          "general",                        
##          "numbers",                        
##          NA}                0.3260394   149
## [3622] { 
## NA,                             
##          "general",                        
##          "numbers",                        
##          "people"}          0.3194748   146
## [3623] { "general",                        
##          "numbers",                        
##          "people",                         
##          NA}                0.3260394   149
## [3624] { 
## NA,                             
##          "american",                       
##          "general",                        
##          NA}                0.3172867   145
## [3625] { 
## NA,                             
##          "american",                       
##          "general",                        
##          "people"}          0.3107221   142
## [3626] { "american",                       
##          "general",                        
##          "people",                         
##          NA}                0.3172867   145
## [3627] { "general",                        
##          "iraq",                           
##          "polls",                          
##          NA}                0.3019694   138
## [3628] { "general",                        
##          "iraq",                           
##          "people",                         
##          "polls"}           0.3019694   138
## [3629] { 
## NA,                             
##          "general",                        
##          "iraq",                           
##          NA}                0.3107221   142
## [3630] { 
## NA,                             
##          "general",                        
##          "iraq",                           
##          "people"}          0.3085339   141
## [3631] { "general",                        
##          "iraq",                           
##          "people",                         
##          NA}                0.3172867   145
## [3632] { "campaign",                       
##          "general",                        
##          "polls",                          
##          "voters"}          0.3129103   143
## [3633] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "voters"}          0.3216630   147
## [3634] { "campaign",                       
##          "general",                        
##          "voters",                         
##          NA}                0.3282276   150
## [3635] { "campaign",                       
##          "general",                        
##          "people",                         
##          "voters"}          0.3216630   147
## [3636] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "polls"}           0.3347921   153
## [3637] { "campaign",                       
##          "general",                        
##          "polls",                          
##          NA}                0.3457330   158
## [3638] { "campaign",                       
##          "general",                        
##          "people",                         
##          "polls"}           0.3413567   156
## [3639] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          NA}                0.3566740   163
## [3640] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "people"}          0.3435449   157
## [3641] { "campaign",                       
##          "general",                        
##          "people",                         
##          NA}                0.3544858   162
## [3642] { "general",                        
##          "people",                         
##          "political",                      
##          NA}                0.3041575   139
## [3643] { 
## NA,                             
##          "general",                        
##          "polls",                          
##          "voters"}          0.3238512   148
## [3644] { "general",                        
##          "polls",                          
##          "voters",                         
##          NA}                0.3304158   151
## [3645] { "general",                        
##          "people",                         
##          "polls",                          
##          "voters"}          0.3238512   148
## [3646] { 
## NA,                             
##          "general",                        
##          "voters",                         
##          NA}                0.3566740   163
## [3647] { 
## NA,                             
##          "general",                        
##          "people",                         
##          "voters"}          0.3479212   159
## [3648] { "general",                        
##          "voters",                         
##          "war",                            
##          NA}                0.3019694   138
## [3649] { "general",                        
##          "people",                         
##          "voters",                         
##          "war"}             0.3041575   139
## [3650] { "general",                        
##          "people",                         
##          "voters",                         
##          NA}                0.3544858   162
## [3651] { 
## NA,                             
##          "general",                        
##          "polls",                          
##          NA}                0.3588621   164
## [3652] { 
## NA,                             
##          "general",                        
##          "people",                         
##          "polls"}           0.3479212   159
## [3653] { "general",                        
##          "polls",                          
##          "war",                            
##          NA}                0.3085339   141
## [3654] { "general",                        
##          "people",                         
##          "polls",                          
##          "war"}             0.3150985   144
## [3655] { "general",                        
##          "people",                         
##          "polls",                          
##          NA}                0.3588621   164
## [3656] { 
## NA,                             
##          "general",                        
##          "war",                            
##          NA}                0.3150985   144
## [3657] { 
## NA,                             
##          "general",                        
##          "people",                         
##          "war"}             0.3150985   144
## [3658] { 
## NA,                             
##          "general",                        
##          "people",                         
##          NA}                0.3873085   177
## [3659] { "general",                        
##          "people",                         
##          "war",                            
##          NA}                0.3260394   149
## [3660] { "george",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3019694   138
## [3661] { 
## NA,                             
##          "george",                         
##          "races",                          
##          NA}                0.3063457   140
## [3662] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "races"}           0.3041575   139
## [3663] { "george",                         
##          "people",                         
##          "races",                          
##          NA}                0.3107221   142
## [3664] { "american",                       
##          "numbers",                        
##          "races",                          
##          NA}                0.3041575   139
## [3665] { "american",                       
##          "numbers",                        
##          "people",                         
##          "races"}           0.3019694   138
## [3666] { 
## NA,                             
##          "iraq",                           
##          "numbers",                        
##          "races"}           0.3041575   139
## [3667] { "iraq",                           
##          "numbers",                        
##          "races",                          
##          NA}                0.3085339   141
## [3668] { "iraq",                           
##          "numbers",                        
##          "people",                         
##          "races"}           0.3041575   139
## [3669] { "campaign",                       
##          "numbers",                        
##          "races",                          
##          NA}                0.3041575   139
## [3670] { "campaign",                       
##          "numbers",                        
##          "people",                         
##          "races"}           0.3019694   138
## [3671] { 
## NA,                             
##          "numbers",                        
##          "political",                      
##          "races"}           0.3019694   138
## [3672] { "numbers",                        
##          "political",                      
##          "races",                          
##          NA}                0.3063457   140
## [3673] { "numbers",                        
##          "people",                         
##          "political",                      
##          "races"}           0.3019694   138
## [3674] { "numbers",                        
##          "polls",                          
##          "races",                          
##          "voters"}          0.3041575   139
## [3675] { 
## NA,                             
##          "numbers",                        
##          "races",                          
##          "voters"}          0.3150985   144
## [3676] { "numbers",                        
##          "races",                          
##          "voters",                         
##          "war"}             0.3085339   141
## [3677] { "numbers",                        
##          "races",                          
##          "voters",                         
##          NA}                0.3194748   146
## [3678] { "numbers",                        
##          "people",                         
##          "races",                          
##          "voters"}          0.3150985   144
## [3679] { 
## NA,                             
##          "numbers",                        
##          "polls",                          
##          "races"}           0.3172867   145
## [3680] { "numbers",                        
##          "polls",                          
##          "races",                          
##          "war"}             0.3085339   141
## [3681] { "numbers",                        
##          "polls",                          
##          "races",                          
##          NA}                0.3216630   147
## [3682] { "numbers",                        
##          "people",                         
##          "polls",                          
##          "races"}           0.3172867   145
## [3683] { 
## NA,                             
##          "numbers",                        
##          "races",                          
##          "war"}             0.3172867   145
## [3684] { 
## NA,                             
##          "numbers",                        
##          "races",                          
##          NA}                0.3326039   152
## [3685] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "races"}           0.3282276   150
## [3686] { "numbers",                        
##          "races",                          
##          "war",                            
##          NA}                0.3216630   147
## [3687] { "numbers",                        
##          "people",                         
##          "races",                          
##          "war"}             0.3172867   145
## [3688] { "numbers",                        
##          "people",                         
##          "races",                          
##          NA}                0.3326039   152
## [3689] { "american",                       
##          "iraq",                           
##          "polls",                          
##          "races"}           0.3019694   138
## [3690] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "races"}           0.3085339   141
## [3691] { "american",                       
##          "iraq",                           
##          "races",                          
##          NA}                0.3150985   144
## [3692] { "american",                       
##          "iraq",                           
##          "people",                         
##          "races"}           0.3129103   143
## [3693] { "american",                       
##          "campaign",                       
##          "polls",                          
##          "races"}           0.3063457   140
## [3694] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "races"}           0.3041575   139
## [3695] { "american",                       
##          "campaign",                       
##          "races",                          
##          NA}                0.3107221   142
## [3696] { "american",                       
##          "campaign",                       
##          "people",                         
##          "races"}           0.3085339   141
## [3697] { "american",                       
##          "political",                      
##          "races",                          
##          NA}                0.3041575   139
## [3698] { "american",                       
##          "people",                         
##          "political",                      
##          "races"}           0.3019694   138
## [3699] { "american",                       
##          "polls",                          
##          "races",                          
##          "voters"}          0.3041575   139
## [3700] { 
## NA,                             
##          "american",                       
##          "races",                          
##          "voters"}          0.3129103   143
## [3701] { "american",                       
##          "races",                          
##          "voters",                         
##          NA}                0.3172867   145
## [3702] { "american",                       
##          "people",                         
##          "races",                          
##          "voters"}          0.3150985   144
## [3703] { 
## NA,                             
##          "american",                       
##          "polls",                          
##          "races"}           0.3194748   146
## [3704] { "american",                       
##          "polls",                          
##          "races",                          
##          "war"}             0.3019694   138
## [3705] { "american",                       
##          "polls",                          
##          "races",                          
##          NA}                0.3260394   149
## [3706] { "american",                       
##          "people",                         
##          "polls",                          
##          "races"}           0.3238512   148
## [3707] { 
## NA,                             
##          "american",                       
##          "races",                          
##          "war"}             0.3085339   141
## [3708] { 
## NA,                             
##          "american",                       
##          "races",                          
##          NA}                0.3326039   152
## [3709] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "races"}           0.3304158   151
## [3710] { "american",                       
##          "races",                          
##          "war",                            
##          NA}                0.3150985   144
## [3711] { "american",                       
##          "people",                         
##          "races",                          
##          "war"}             0.3129103   143
## [3712] { "american",                       
##          "people",                         
##          "races",                          
##          NA}                0.3369803   154
## [3713] { "campaign",                       
##          "iraq",                           
##          "polls",                          
##          "races"}           0.3085339   141
## [3714] { 
## NA,                             
##          "campaign",                       
##          "iraq",                           
##          "races"}           0.3063457   140
## [3715] { "campaign",                       
##          "iraq",                           
##          "races",                          
##          NA}                0.3129103   143
## [3716] { "campaign",                       
##          "iraq",                           
##          "people",                         
##          "races"}           0.3085339   141
## [3717] { 
## NA,                             
##          "iraq",                           
##          "political",                      
##          "races"}           0.3063457   140
## [3718] { "iraq",                           
##          "political",                      
##          "races",                          
##          "war"}             0.3041575   139
## [3719] { "iraq",                           
##          "political",                      
##          "races",                          
##          NA}                0.3129103   143
## [3720] { "iraq",                           
##          "people",                         
##          "political",                      
##          "races"}           0.3085339   141
## [3721] { "iraq",                           
##          "polls",                          
##          "races",                          
##          "voters"}          0.3129103   143
## [3722] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          "voters"}          0.3216630   147
## [3723] { "iraq",                           
##          "races",                          
##          "voters",                         
##          "war"}             0.3085339   141
## [3724] { "iraq",                           
##          "races",                          
##          "voters",                         
##          NA}                0.3260394   149
## [3725] { "iraq",                           
##          "people",                         
##          "races",                          
##          "voters"}          0.3194748   146
## [3726] { 
## NA,                             
##          "iraq",                           
##          "polls",                          
##          "races"}           0.3260394   149
## [3727] { "iraq",                           
##          "polls",                          
##          "races",                          
##          "war"}             0.3129103   143
## [3728] { "iraq",                           
##          "polls",                          
##          "races",                          
##          NA}                0.3326039   152
## [3729] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "races"}           0.3260394   149
## [3730] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          "war"}             0.3194748   146
## [3731] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          NA}                0.3391685   155
## [3732] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "races"}           0.3326039   152
## [3733] { "iraq",                           
##          "races",                          
##          "war",                            
##          NA}                0.3260394   149
## [3734] { "iraq",                           
##          "people",                         
##          "races",                          
##          "war"}             0.3216630   147
## [3735] { "iraq",                           
##          "people",                         
##          "races",                          
##          NA}                0.3391685   155
## [3736] { "campaign",                       
##          "political",                      
##          "races",                          
##          NA}                0.3019694   138
## [3737] { "campaign",                       
##          "polls",                          
##          "races",                          
##          "voters"}          0.3194748   146
## [3738] { 
## NA,                             
##          "campaign",                       
##          "races",                          
##          "voters"}          0.3216630   147
## [3739] { "campaign",                       
##          "races",                          
##          "voters",                         
##          "war"}             0.3041575   139
## [3740] { "campaign",                       
##          "races",                          
##          "voters",                         
##          NA}                0.3260394   149
## [3741] { "campaign",                       
##          "people",                         
##          "races",                          
##          "voters"}          0.3216630   147
## [3742] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "races"}           0.3369803   154
## [3743] { "campaign",                       
##          "polls",                          
##          "races",                          
##          "war"}             0.3172867   145
## [3744] { "campaign",                       
##          "polls",                          
##          "races",                          
##          NA}                0.3435449   157
## [3745] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "races"}           0.3391685   155
## [3746] { 
## NA,                             
##          "campaign",                       
##          "races",                          
##          "war"}             0.3150985   144
## [3747] { 
## NA,                             
##          "campaign",                       
##          "races",                          
##          NA}                0.3435449   157
## [3748] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "races"}           0.3391685   155
## [3749] { "campaign",                       
##          "races",                          
##          "war",                            
##          NA}                0.3216630   147
## [3750] { "campaign",                       
##          "people",                         
##          "races",                          
##          "war"}             0.3194748   146
## [3751] { "campaign",                       
##          "people",                         
##          "races",                          
##          NA}                0.3457330   158
## [3752] { 
## NA,                             
##          "political",                      
##          "races",                          
##          "voters"}          0.3085339   141
## [3753] { "political",                      
##          "races",                          
##          "voters",                         
##          "war"}             0.3041575   139
## [3754] { "political",                      
##          "races",                          
##          "voters",                         
##          NA}                0.3129103   143
## [3755] { "people",                         
##          "political",                      
##          "races",                          
##          "voters"}          0.3085339   141
## [3756] { 
## NA,                             
##          "political",                      
##          "polls",                          
##          "races"}           0.3107221   142
## [3757] { "political",                      
##          "polls",                          
##          "races",                          
##          "war"}             0.3063457   140
## [3758] { "political",                      
##          "polls",                          
##          "races",                          
##          NA}                0.3172867   145
## [3759] { "people",                         
##          "political",                      
##          "polls",                          
##          "races"}           0.3129103   143
## [3760] { 
## NA,                             
##          "political",                      
##          "races",                          
##          "war"}             0.3129103   143
## [3761] { 
## NA,                             
##          "political",                      
##          "races",                          
##          NA}                0.3238512   148
## [3762] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "races"}           0.3194748   146
## [3763] { "political",                      
##          "races",                          
##          "war",                            
##          NA}                0.3194748   146
## [3764] { "people",                         
##          "political",                      
##          "races",                          
##          "war"}             0.3150985   144
## [3765] { "people",                         
##          "political",                      
##          "races",                          
##          NA}                0.3260394   149
## [3766] { 
## NA,                             
##          "polls",                          
##          "races",                          
##          "voters"}          0.3347921   153
## [3767] { "polls",                          
##          "races",                          
##          "voters",                         
##          "war"}             0.3194748   146
## [3768] { "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3391685   155
## [3769] { "people",                         
##          "polls",                          
##          "races",                          
##          "voters"}          0.3326039   152
## [3770] { 
## NA,                             
##          "races",                          
##          "voters",                         
##          "war"}             0.3282276   150
## [3771] { 
## NA,                             
##          "races",                          
##          "voters",                         
##          NA}                0.3501094   160
## [3772] { 
## NA,                             
##          "people",                         
##          "races",                          
##          "voters"}          0.3435449   157
## [3773] { "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3326039   152
## [3774] { "people",                         
##          "races",                          
##          "voters",                         
##          "war"}             0.3282276   150
## [3775] { "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3479212   159
## [3776] { 
## NA,                             
##          "administration",                 
##          "races",                          
##          NA}                0.3041575   139
## [3777] { 
## NA,                             
##          "administration",                 
##          "people",                         
##          "races"}           0.3019694   138
## [3778] { "administration",                 
##          "people",                         
##          "races",                          
##          NA}                0.3085339   141
## [3779] { 
## NA,                             
##          "polls",                          
##          "races",                          
##          "war"}             0.3326039   152
## [3780] { 
## NA,                             
##          "polls",                          
##          "races",                          
##          NA}                0.3610503   165
## [3781] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "races"}           0.3544858   162
## [3782] { "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3391685   155
## [3783] { "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3347921   153
## [3784] { "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3610503   165
## [3785] { 
## NA,                             
##          "races",                          
##          "war",                            
##          NA}                0.3457330   158
## [3786] { 
## NA,                             
##          "people",                         
##          "races",                          
##          "war"}             0.3413567   156
## [3787] { 
## NA,                             
##          "people",                         
##          "races",                          
##          NA}                0.3698031   169
## [3788] { "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3479212   159
## [3789] { "george",                         
##          "numbers",                        
##          "voters",                         
##          NA}                0.3063457   140
## [3790] { 
## NA,                             
##          "george",                         
##          "numbers",                        
##          "polls"}           0.3019694   138
## [3791] { "george",                         
##          "numbers",                        
##          "polls",                          
##          NA}                0.3085339   141
## [3792] { 
## NA,                             
##          "george",                         
##          "numbers",                        
##          NA}                0.3194748   146
## [3793] { 
## NA,                             
##          "george",                         
##          "numbers",                        
##          "people"}          0.3107221   142
## [3794] { "george",                         
##          "numbers",                        
##          "war",                            
##          NA}                0.3063457   140
## [3795] { "george",                         
##          "numbers",                        
##          "people",                         
##          "war"}             0.3019694   138
## [3796] { "george",                         
##          "numbers",                        
##          "people",                         
##          NA}                0.3172867   145
## [3797] { "american",                       
##          "george",                         
##          "iraq",                           
##          NA}                0.3041575   139
## [3798] { "american",                       
##          "george",                         
##          "iraq",                           
##          "people"}          0.3041575   139
## [3799] { "american",                       
##          "george",                         
##          "political",                      
##          NA}                0.3019694   138
## [3800] { "american",                       
##          "george",                         
##          "people",                         
##          "political"}       0.3019694   138
## [3801] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "voters"}          0.3041575   139
## [3802] { "american",                       
##          "george",                         
##          "voters",                         
##          NA}                0.3085339   141
## [3803] { "american",                       
##          "george",                         
##          "people",                         
##          "voters"}          0.3063457   140
## [3804] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "polls"}           0.3063457   140
## [3805] { "american",                       
##          "george",                         
##          "polls",                          
##          NA}                0.3150985   144
## [3806] { "american",                       
##          "george",                         
##          "people",                         
##          "polls"}           0.3107221   142
## [3807] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "war"}             0.3041575   139
## [3808] { 
## NA,                             
##          "american",                       
##          "george",                         
##          NA}                0.3238512   148
## [3809] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "people"}          0.3172867   145
## [3810] { "american",                       
##          "george",                         
##          "war",                            
##          NA}                0.3129103   143
## [3811] { "american",                       
##          "george",                         
##          "people",                         
##          "war"}             0.3129103   143
## [3812] { "american",                       
##          "george",                         
##          "people",                         
##          NA}                0.3260394   149
## [3813] { "george",                         
##          "iraq",                           
##          "political",                      
##          NA}                0.3063457   140
## [3814] { "george",                         
##          "iraq",                           
##          "people",                         
##          "political"}       0.3063457   140
## [3815] { "george",                         
##          "iraq",                           
##          "voters",                         
##          NA}                0.3019694   138
## [3816] { "george",                         
##          "iraq",                           
##          "people",                         
##          "voters"}          0.3019694   138
## [3817] { "george",                         
##          "iraq",                           
##          "polls",                          
##          NA}                0.3063457   140
## [3818] { "george",                         
##          "iraq",                           
##          "people",                         
##          "polls"}           0.3063457   140
## [3819] { 
## NA,                             
##          "george",                         
##          "iraq",                           
##          NA}                0.3129103   143
## [3820] { 
## NA,                             
##          "george",                         
##          "iraq",                           
##          "people"}          0.3107221   142
## [3821] { "george",                         
##          "iraq",                           
##          "war",                            
##          NA}                0.3085339   141
## [3822] { "george",                         
##          "iraq",                           
##          "people",                         
##          "war"}             0.3085339   141
## [3823] { "george",                         
##          "iraq",                           
##          "people",                         
##          NA}                0.3194748   146
## [3824] { "campaign",                       
##          "george",                         
##          "polls",                          
##          "voters"}          0.3019694   138
## [3825] { "campaign",                       
##          "george",                         
##          "voters",                         
##          NA}                0.3019694   138
## [3826] { 
## NA,                             
##          "campaign",                       
##          "george",                         
##          "polls"}           0.3129103   143
## [3827] { "campaign",                       
##          "george",                         
##          "polls",                          
##          "war"}             0.3063457   140
## [3828] { "campaign",                       
##          "george",                         
##          "polls",                          
##          NA}                0.3238512   148
## [3829] { "campaign",                       
##          "george",                         
##          "people",                         
##          "polls"}           0.3194748   146
## [3830] { 
## NA,                             
##          "campaign",                       
##          "george",                         
##          NA}                0.3194748   146
## [3831] { 
## NA,                             
##          "campaign",                       
##          "george",                         
##          "people"}          0.3107221   142
## [3832] { "campaign",                       
##          "george",                         
##          "war",                            
##          NA}                0.3063457   140
## [3833] { "campaign",                       
##          "george",                         
##          "people",                         
##          "war"}             0.3063457   140
## [3834] { "campaign",                       
##          "george",                         
##          "people",                         
##          NA}                0.3216630   147
## [3835] { "george",                         
##          "political",                      
##          "voters",                         
##          NA}                0.3041575   139
## [3836] { "george",                         
##          "people",                         
##          "political",                      
##          "voters"}          0.3041575   139
## [3837] { "george",                         
##          "political",                      
##          "polls",                          
##          "war"}             0.3019694   138
## [3838] { "george",                         
##          "political",                      
##          "polls",                          
##          NA}                0.3085339   141
## [3839] { "george",                         
##          "people",                         
##          "political",                      
##          "polls"}           0.3085339   141
## [3840] { 
## NA,                             
##          "george",                         
##          "political",                      
##          "war"}             0.3041575   139
## [3841] { 
## NA,                             
##          "george",                         
##          "political",                      
##          NA}                0.3129103   143
## [3842] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "political"}       0.3107221   142
## [3843] { "george",                         
##          "political",                      
##          "war",                            
##          NA}                0.3150985   144
## [3844] { "george",                         
##          "people",                         
##          "political",                      
##          "war"}             0.3150985   144
## [3845] { "george",                         
##          "people",                         
##          "political",                      
##          NA}                0.3216630   147
## [3846] { 
## NA,                             
##          "george",                         
##          "polls",                          
##          "voters"}          0.3150985   144
## [3847] { "george",                         
##          "polls",                          
##          "voters",                         
##          "war"}             0.3085339   141
## [3848] { "george",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3216630   147
## [3849] { "george",                         
##          "people",                         
##          "polls",                          
##          "voters"}          0.3172867   145
## [3850] { 
## NA,                             
##          "george",                         
##          "voters",                         
##          "war"}             0.3129103   143
## [3851] { 
## NA,                             
##          "george",                         
##          "voters",                         
##          NA}                0.3304158   151
## [3852] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "voters"}          0.3238512   148
## [3853] { "george",                         
##          "voters",                         
##          "war",                            
##          NA}                0.3194748   146
## [3854] { "george",                         
##          "people",                         
##          "voters",                         
##          "war"}             0.3172867   145
## [3855] { "george",                         
##          "people",                         
##          "voters",                         
##          NA}                0.3304158   151
## [3856] { 
## NA,                             
##          "george",                         
##          "polls",                          
##          "war"}             0.3129103   143
## [3857] { 
## NA,                             
##          "george",                         
##          "polls",                          
##          NA}                0.3369803   154
## [3858] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "polls"}           0.3282276   150
## [3859] { "george",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3238512   148
## [3860] { "george",                         
##          "people",                         
##          "polls",                          
##          "war"}             0.3216630   147
## [3861] { "george",                         
##          "people",                         
##          "polls",                          
##          NA}                0.3391685   155
## [3862] { 
## NA,                             
##          "george",                         
##          "war",                            
##          NA}                0.3282276   150
## [3863] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "war"}             0.3238512   148
## [3864] { 
## NA,                             
##          "george",                         
##          "people",                         
##          NA}                0.3501094   160
## [3865] { "george",                         
##          "people",                         
##          "war",                            
##          NA}                0.3347921   153
## [3866] { "iraq",                           
##          "war",                            
##          "years",                          
##          NA}                0.3019694   138
## [3867] { "iraq",                           
##          "people",                         
##          "war",                            
##          "years"}           0.3019694   138
## [3868] { "iraq",                           
##          "people",                         
##          "years",                          
##          NA}                0.3041575   139
## [3869] { "political",                      
##          "war",                            
##          "years",                          
##          NA}                0.3063457   140
## [3870] { "people",                         
##          "political",                      
##          "war",                            
##          "years"}           0.3107221   142
## [3871] { "people",                         
##          "political",                      
##          "years",                          
##          NA}                0.3063457   140
## [3872] { "people",                         
##          "voters",                         
##          "years",                          
##          NA}                0.3063457   140
## [3873] { "administration",                 
##          "people",                         
##          "war",                            
##          "years"}           0.3041575   139
## [3874] { "people",                         
##          "republicans",                    
##          "war",                            
##          "years"}           0.3041575   139
## [3875] { "people",                         
##          "polls",                          
##          "war",                            
##          "years"}           0.3041575   139
## [3876] { "people",                         
##          "polls",                          
##          "years",                          
##          NA}                0.3063457   140
## [3877] { 
## NA,                             
##          "war",                            
##          "years",                          
##          NA}                0.3041575   139
## [3878] { 
## NA,                             
##          "people",                         
##          "war",                            
##          "years"}           0.3019694   138
## [3879] { 
## NA,                             
##          "people",                         
##          "years",                          
##          NA}                0.3172867   145
## [3880] { "people",                         
##          "war",                            
##          "years",                          
##          NA}                0.3150985   144
## [3881] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "numbers"}         0.3085339   141
## [3882] { "american",                       
##          "iraq",                           
##          "numbers",                        
##          NA}                0.3129103   143
## [3883] { "american",                       
##          "iraq",                           
##          "numbers",                        
##          "people"}          0.3107221   142
## [3884] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "numbers"}         0.3063457   140
## [3885] { "american",                       
##          "campaign",                       
##          "numbers",                        
##          NA}                0.3107221   142
## [3886] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "political"}       0.3063457   140
## [3887] { "american",                       
##          "numbers",                        
##          "political",                      
##          "war"}             0.3041575   139
## [3888] { "american",                       
##          "numbers",                        
##          "political",                      
##          NA}                0.3107221   142
## [3889] { "american",                       
##          "numbers",                        
##          "people",                         
##          "political"}       0.3085339   141
## [3890] { "american",                       
##          "numbers",                        
##          "polls",                          
##          "voters"}          0.3063457   140
## [3891] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "voters"}          0.3194748   146
## [3892] { "american",                       
##          "numbers",                        
##          "voters",                         
##          "war"}             0.3085339   141
## [3893] { "american",                       
##          "numbers",                        
##          "voters",                         
##          NA}                0.3238512   148
## [3894] { "american",                       
##          "numbers",                        
##          "people",                         
##          "voters"}          0.3172867   145
## [3895] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "polls"}           0.3194748   146
## [3896] { "american",                       
##          "numbers",                        
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## [3897] { "american",                       
##          "numbers",                        
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## [3899] { 
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##          "numbers",                        
##          "people"}          0.3326039   152
## [3902] { "american",                       
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##          "numbers",                        
##          "people",                         
##          "war"}             0.3172867   145
## [3904] { "american",                       
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##          "people",                         
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##          "numbers",                        
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## [3906] { "campaign",                       
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## [3907] { "campaign",                       
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## [3908] { "iraq",                           
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## [3909] { "iraq",                           
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##          "numbers",                        
##          "political",                      
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##          "numbers",                        
##          "people",                         
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## [3914] { "iraq",                           
##          "numbers",                        
##          "polls",                          
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## [3915] { 
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## [3916] { "iraq",                           
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##          "voters",                         
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## [3917] { "iraq",                           
##          "numbers",                        
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## [3918] { "iraq",                           
##          "numbers",                        
##          "people",                         
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## [3919] { 
## NA,                             
##          "iraq",                           
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## [3920] { "iraq",                           
##          "numbers",                        
##          "polls",                          
##          "war"}             0.3107221   142
## [3921] { "iraq",                           
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## [3922] { "iraq",                           
##          "numbers",                        
##          "people",                         
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## [3923] { 
## NA,                             
##          "iraq",                           
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## NA,                             
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##          "iraq",                           
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## [3926] { "iraq",                           
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## [3927] { "iraq",                           
##          "numbers",                        
##          "people",                         
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## [3928] { "iraq",                           
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## [3931] { "campaign",                       
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## [3932] { 
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## [3934] { "campaign",                       
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## [3935] { "campaign",                       
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##          "people",                         
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## [3936] { 
## NA,                             
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## [3937] { "campaign",                       
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##          "polls",                          
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## [3938] { "campaign",                       
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## [3939] { "campaign",                       
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##          "people",                         
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## [3940] { 
## NA,                             
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## NA,                             
##          "campaign",                       
##          "numbers",                        
##          "people"}          0.3544858   162
## [3943] { "campaign",                       
##          "numbers",                        
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##          "numbers",                        
##          "people",                         
##          "war"}             0.3194748   146
## [3945] { "campaign",                       
##          "numbers",                        
##          "people",                         
##          NA}                0.3632385   166
## [3946] { "numbers",                        
##          "political",                      
##          "polls",                          
##          "voters"}          0.3107221   142
## [3947] { 
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## [3948] { "numbers",                        
##          "political",                      
##          "voters",                         
##          "war"}             0.3216630   147
## [3949] { "numbers",                        
##          "political",                      
##          "voters",                         
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## [3950] { "numbers",                        
##          "people",                         
##          "political",                      
##          "voters"}          0.3216630   147
## [3951] { 
## NA,                             
##          "numbers",                        
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## [3952] { "numbers",                        
##          "political",                      
##          "polls",                          
##          "war"}             0.3172867   145
## [3953] { "numbers",                        
##          "political",                      
##          "polls",                          
##          NA}                0.3238512   148
## [3954] { "numbers",                        
##          "people",                         
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## [3955] { 
## NA,                             
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## [3956] { 
## NA,                             
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## [3957] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "political"}       0.3282276   150
## [3958] { "numbers",                        
##          "political",                      
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##          "people",                         
##          "political",                      
##          "war"}             0.3304158   151
## [3960] { "numbers",                        
##          "people",                         
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##          NA}                0.3369803   154
## [3961] { "administration",                 
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## [3962] { "administration",                 
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##          "people",                         
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## [3963] { "numbers",                        
##          "republicans",                    
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##          NA}                0.3019694   138
## [3964] { 
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## [3965] { "numbers",                        
##          "polls",                          
##          "voters",                         
##          "war"}             0.3326039   152
## [3966] { "numbers",                        
##          "polls",                          
##          "voters",                         
##          NA}                0.3610503   165
## [3967] { "numbers",                        
##          "people",                         
##          "polls",                          
##          "voters"}          0.3501094   160
## [3968] { 
## NA,                             
##          "numbers",                        
##          "voters",                         
##          "war"}             0.3391685   155
## [3969] { 
## NA,                             
##          "numbers",                        
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##          NA}                0.3829322   175
## [3970] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "voters"}          0.3676149   168
## [3971] { "numbers",                        
##          "voters",                         
##          "war",                            
##          NA}                0.3479212   159
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##          "people",                         
##          "voters",                         
##          "war"}             0.3413567   156
## [3973] { "numbers",                        
##          "people",                         
##          "voters",                         
##          NA}                0.3763676   172
## [3974] { 
## NA,                             
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## NA,                             
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## NA,                             
##          "administration",                 
##          "numbers",                        
##          "people"}          0.3063457   140
## [3977] { "administration",                 
##          "numbers",                        
##          "war",                            
##          NA}                0.3107221   142
## [3978] { "administration",                 
##          "numbers",                        
##          "people",                         
##          "war"}             0.3085339   141
## [3979] { "administration",                 
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##          "people",                         
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## [3980] { 
## NA,                             
##          "numbers",                        
##          "republicans",                    
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## [3981] { 
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##          "people",                         
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## [3982] { "numbers",                        
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##          "war",                            
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##          "republicans",                    
##          "war"}             0.3063457   140
## [3984] { "numbers",                        
##          "people",                         
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## [3985] { 
## NA,                             
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##          "war"}             0.3369803   154
## [3986] { 
## NA,                             
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##          NA}                0.3851204   176
## [3987] { 
## NA,                             
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##          "people",                         
##          "polls"}           0.3719912   170
## [3988] { "numbers",                        
##          "polls",                          
##          "war",                            
##          NA}                0.3457330   158
## [3989] { "numbers",                        
##          "people",                         
##          "polls",                          
##          "war"}             0.3391685   155
## [3990] { "numbers",                        
##          "people",                         
##          "polls",                          
##          NA}                0.3807440   174
## [3991] { 
## NA,                             
##          "numbers",                        
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##          NA}                0.3544858   162
## [3992] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "war"}             0.3479212   159
## [3993] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          NA}                0.4070022   186
## [3994] { "numbers",                        
##          "people",                         
##          "war",                            
##          NA}                0.3566740   163
## [3995] { "american",                       
##          "campaign",                       
##          "iraq",                           
##          "polls"}           0.3085339   141
## [3996] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "iraq"}            0.3041575   139
## [3997] { "american",                       
##          "campaign",                       
##          "iraq",                           
##          NA}                0.3107221   142
## [3998] { "american",                       
##          "campaign",                       
##          "iraq",                           
##          "people"}          0.3107221   142
## [3999] { "american",                       
##          "iraq",                           
##          "political",                      
##          "voters"}          0.3041575   139
## [4000] { "american",                       
##          "iraq",                           
##          "political",                      
##          "polls"}           0.3041575   139
## [4001] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "political"}       0.3129103   143
## [4002] { "american",                       
##          "iraq",                           
##          "political",                      
##          "war"}             0.3129103   143
## [4003] { "american",                       
##          "iraq",                           
##          "political",                      
##          NA}                0.3194748   146
## [4004] { "american",                       
##          "iraq",                           
##          "people",                         
##          "political"}       0.3194748   146
## [4005] { "american",                       
##          "iraq",                           
##          "polls",                          
##          "voters"}          0.3129103   143
## [4006] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "voters"}          0.3216630   147
## [4007] { "american",                       
##          "iraq",                           
##          "voters",                         
##          "war"}             0.3107221   142
## [4008] { "american",                       
##          "iraq",                           
##          "voters",                         
##          NA}                0.3260394   149
## [4009] { "american",                       
##          "iraq",                           
##          "people",                         
##          "voters"}          0.3260394   149
## [4010] { "administration",                 
##          "american",                       
##          "iraq",                           
##          NA}                0.3019694   138
## [4011] { "administration",                 
##          "american",                       
##          "iraq",                           
##          "people"}          0.3019694   138
## [4012] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "polls"}           0.3216630   147
## [4013] { "american",                       
##          "iraq",                           
##          "polls",                          
##          "war"}             0.3107221   142
## [4014] { "american",                       
##          "iraq",                           
##          "polls",                          
##          NA}                0.3282276   150
## [4015] { "american",                       
##          "iraq",                           
##          "people",                         
##          "polls"}           0.3282276   150
## [4016] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "war"}             0.3194748   146
## [4017] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          NA}                0.3391685   155
## [4018] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "people"}          0.3369803   154
## [4019] { "american",                       
##          "iraq",                           
##          "war",                            
##          NA}                0.3260394   149
## [4020] { "american",                       
##          "iraq",                           
##          "people",                         
##          "war"}             0.3260394   149
## [4021] { "american",                       
##          "iraq",                           
##          "people",                         
##          NA}                0.3435449   157
## [4022] { "american",                       
##          "campaign",                       
##          "political",                      
##          NA}                0.3019694   138
## [4023] { "american",                       
##          "campaign",                       
##          "people",                         
##          "political"}       0.3019694   138
## [4024] { "american",                       
##          "campaign",                       
##          "polls",                          
##          "voters"}          0.3172867   145
## [4025] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "voters"}          0.3172867   145
## [4026] { "american",                       
##          "campaign",                       
##          "voters",                         
##          NA}                0.3216630   147
## [4027] { "american",                       
##          "campaign",                       
##          "people",                         
##          "voters"}          0.3172867   145
## [4028] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "polls"}           0.3347921   153
## [4029] { "american",                       
##          "campaign",                       
##          "polls",                          
##          "war"}             0.3129103   143
## [4030] { "american",                       
##          "campaign",                       
##          "polls",                          
##          NA}                0.3435449   157
## [4031] { "american",                       
##          "campaign",                       
##          "people",                         
##          "polls"}           0.3391685   155
## [4032] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "war"}             0.3063457   140
## [4033] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          NA}                0.3479212   159
## [4034] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "people"}          0.3369803   154
## [4035] { "american",                       
##          "campaign",                       
##          "war",                            
##          NA}                0.3150985   144
## [4036] { "american",                       
##          "campaign",                       
##          "people",                         
##          "war"}             0.3150985   144
## [4037] { "american",                       
##          "campaign",                       
##          "people",                         
##          NA}                0.3457330   158
## [4038] { "american",                       
##          "political",                      
##          "polls",                          
##          "voters"}          0.3041575   139
## [4039] { 
## NA,                             
##          "american",                       
##          "political",                      
##          "voters"}          0.3129103   143
## [4040] { "american",                       
##          "political",                      
##          "voters",                         
##          "war"}             0.3107221   142
## [4041] { "american",                       
##          "political",                      
##          "voters",                         
##          NA}                0.3172867   145
## [4042] { "american",                       
##          "people",                         
##          "political",                      
##          "voters"}          0.3172867   145
## [4043] { "administration",                 
##          "american",                       
##          "political",                      
##          "war"}             0.3019694   138
## [4044] { "administration",                 
##          "american",                       
##          "political",                      
##          NA}                0.3041575   139
## [4045] { "administration",                 
##          "american",                       
##          "people",                         
##          "political"}       0.3063457   140
## [4046] { "american",                       
##          "people",                         
##          "political",                      
##          "republicans"}     0.3019694   138
## [4047] { 
## NA,                             
##          "american",                       
##          "political",                      
##          "polls"}           0.3107221   142
## [4048] { "american",                       
##          "political",                      
##          "polls",                          
##          "war"}             0.3107221   142
## [4049] { "american",                       
##          "political",                      
##          "polls",                          
##          NA}                0.3194748   146
## [4050] { "american",                       
##          "people",                         
##          "political",                      
##          "polls"}           0.3194748   146
## [4051] { 
## NA,                             
##          "american",                       
##          "political",                      
##          "war"}             0.3172867   145
## [4052] { 
## NA,                             
##          "american",                       
##          "political",                      
##          NA}                0.3282276   150
## [4053] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "political"}       0.3260394   149
## [4054] { "american",                       
##          "political",                      
##          "war",                            
##          NA}                0.3260394   149
## [4055] { "american",                       
##          "people",                         
##          "political",                      
##          "war"}             0.3282276   150
## [4056] { "american",                       
##          "people",                         
##          "political",                      
##          NA}                0.3347921   153
## [4057] { "administration",                 
##          "american",                       
##          "voters",                         
##          NA}                0.3041575   139
## [4058] { "administration",                 
##          "american",                       
##          "people",                         
##          "voters"}          0.3041575   139
## [4059] { 
## NA,                             
##          "american",                       
##          "polls",                          
##          "voters"}          0.3326039   152
## [4060] { "american",                       
##          "polls",                          
##          "voters",                         
##          "war"}             0.3172867   145
## [4061] { "american",                       
##          "polls",                          
##          "voters",                         
##          NA}                0.3369803   154
## [4062] { "american",                       
##          "people",                         
##          "polls",                          
##          "voters"}          0.3347921   153
## [4063] { 
## NA,                             
##          "american",                       
##          "voters",                         
##          "war"}             0.3260394   149
## [4064] { 
## NA,                             
##          "american",                       
##          "voters",                         
##          NA}                0.3544858   162
## [4065] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "voters"}          0.3457330   158
## [4066] { "american",                       
##          "voters",                         
##          "war",                            
##          NA}                0.3304158   151
## [4067] { "american",                       
##          "people",                         
##          "voters",                         
##          "war"}             0.3304158   151
## [4068] { "american",                       
##          "people",                         
##          "voters",                         
##          NA}                0.3501094   160
## [4069] { "administration",                 
##          "american",                       
##          "polls",                          
##          NA}                0.3041575   139
## [4070] { "administration",                 
##          "american",                       
##          "people",                         
##          "polls"}           0.3041575   139
## [4071] { 
## NA,                             
##          "administration",                 
##          "american",                       
##          "war"}             0.3019694   138
## [4072] { 
## NA,                             
##          "administration",                 
##          "american",                       
##          NA}                0.3150985   144
## [4073] { 
## NA,                             
##          "administration",                 
##          "american",                       
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## [4228] { 
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## NA,                             
##          "people",                         
##          "political",                      
##          "republicans"}     0.3085339   141
## [4251] { "political",                      
##          "republicans",                    
##          "war",                            
##          NA}                0.3150985   144
## [4252] { "people",                         
##          "political",                      
##          "republicans",                    
##          "war"}             0.3194748   146
## [4253] { "people",                         
##          "political",                      
##          "republicans",                    
##          NA}                0.3216630   147
## [4254] { 
## NA,                             
##          "political",                      
##          "polls",                          
##          "war"}             0.3304158   151
## [4255] { 
## NA,                             
##          "political",                      
##          "polls",                          
##          NA}                0.3413567   156
## [4256] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "polls"}           0.3369803   154
## [4257] { "political",                      
##          "polls",                          
##          "war",                            
##          NA}                0.3435449   157
## [4258] { "people",                         
##          "political",                      
##          "polls",                          
##          "war"}             0.3435449   157
## [4259] { "people",                         
##          "political",                      
##          "polls",                          
##          NA}                0.3501094   160
## [4260] { 
## NA,                             
##          "political",                      
##          "war",                            
##          NA}                0.3479212   159
## [4261] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "war"}             0.3435449   157
## [4262] { 
## NA,                             
##          "people",                         
##          "political",                      
##          NA}                0.3544858   162
## [4263] { "people",                         
##          "political",                      
##          "war",                            
##          NA}                0.3566740   163
## [4264] { 
## NA,                             
##          "administration",                 
##          "polls",                          
##          "voters"}          0.3019694   138
## [4265] { "administration",                 
##          "polls",                          
##          "voters",                         
##          "war"}             0.3019694   138
## [4266] { "administration",                 
##          "polls",                          
##          "voters",                         
##          NA}                0.3107221   142
## [4267] { "administration",                 
##          "people",                         
##          "polls",                          
##          "voters"}          0.3107221   142
## [4268] { 
## NA,                             
##          "administration",                 
##          "voters",                         
##          "war"}             0.3063457   140
## [4269] { 
## NA,                             
##          "administration",                 
##          "voters",                         
##          NA}                0.3172867   145
## [4270] { 
## NA,                             
##          "administration",                 
##          "people",                         
##          "voters"}          0.3150985   144
## [4271] { "administration",                 
##          "voters",                         
##          "war",                            
##          NA}                0.3150985   144
## [4272] { "administration",                 
##          "people",                         
##          "voters",                         
##          "war"}             0.3150985   144
## [4273] { "administration",                 
##          "people",                         
##          "voters",                         
##          NA}                0.3238512   148
## [4274] { "polls",                          
##          "republicans",                    
##          "voters",                         
##          NA}                0.3063457   140
## [4275] { "people",                         
##          "polls",                          
##          "republicans",                    
##          "voters"}          0.3063457   140
## [4276] { 
## NA,                             
##          "republicans",                    
##          "voters",                         
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## [4277] { 
## NA,                             
##          "republicans",                    
##          "voters",                         
##          NA}                0.3129103   143
## [4278] { 
## NA,                             
##          "people",                         
##          "republicans",                    
##          "voters"}          0.3107221   142
## [4279] { "republicans",                    
##          "voters",                         
##          "war",                            
##          NA}                0.3129103   143
## [4280] { "people",                         
##          "republicans",                    
##          "voters",                         
##          "war"}             0.3129103   143
## [4281] { "people",                         
##          "republicans",                    
##          "voters",                         
##          NA}                0.3194748   146
## [4282] { 
## NA,                             
##          "polls",                          
##          "voters",                         
##          "war"}             0.3522976   161
## [4283] { 
## NA,                             
##          "polls",                          
##          "voters",                         
##          NA}                0.4245077   194
## [4284] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "voters"}          0.3938731   180
## [4285] { "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3610503   165
## [4286] { "people",                         
##          "polls",                          
##          "voters",                         
##          "war"}             0.3566740   163
## [4287] { "people",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.4026258   184
## [4288] { 
## NA,                             
##          "voters",                         
##          "war",                            
##          NA}                0.3676149   168
## [4289] { 
## NA,                             
##          "people",                         
##          "voters",                         
##          "war"}             0.3610503   165
## [4290] { 
## NA,                             
##          "people",                         
##          "voters",                         
##          NA}                0.4442013   203
## [4291] { "people",                         
##          "voters",                         
##          "war",                            
##          NA}                0.3698031   169
## [4292] { 
## NA,                             
##          "administration",                 
##          "republicans",                    
##          NA}                0.3063457   140
## [4293] { "administration",                 
##          "republicans",                    
##          "war",                            
##          NA}                0.3063457   140
## [4294] { "administration",                 
##          "people",                         
##          "republicans",                    
##          "war"}             0.3129103   143
## [4295] { "administration",                 
##          "people",                         
##          "republicans",                    
##          NA}                0.3107221   142
## [4296] { 
## NA,                             
##          "administration",                 
##          "polls",                          
##          "war"}             0.3041575   139
## [4297] { 
## NA,                             
##          "administration",                 
##          "polls",                          
##          NA}                0.3150985   144
## [4298] { 
## NA,                             
##          "administration",                 
##          "people",                         
##          "polls"}           0.3129103   143
## [4299] { "administration",                 
##          "polls",                          
##          "war",                            
##          NA}                0.3172867   145
## [4300] { "administration",                 
##          "people",                         
##          "polls",                          
##          "war"}             0.3216630   147
## [4301] { "administration",                 
##          "people",                         
##          "polls",                          
##          NA}                0.3260394   149
## [4302] { 
## NA,                             
##          "administration",                 
##          "war",                            
##          NA}                0.3216630   147
## [4303] { 
## NA,                             
##          "administration",                 
##          "people",                         
##          "war"}             0.3194748   146
## [4304] { 
## NA,                             
##          "administration",                 
##          "people",                         
##          NA}                0.3369803   154
## [4305] { "administration",                 
##          "people",                         
##          "war",                            
##          NA}                0.3326039   152
## [4306] { 
## NA,                             
##          "polls",                          
##          "republicans",                    
##          NA}                0.3085339   141
## [4307] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "republicans"}     0.3063457   140
## [4308] { "polls",                          
##          "republicans",                    
##          "war",                            
##          NA}                0.3129103   143
## [4309] { "people",                         
##          "polls",                          
##          "republicans",                    
##          "war"}             0.3172867   145
## [4310] { "people",                         
##          "polls",                          
##          "republicans",                    
##          NA}                0.3194748   146
## [4311] { 
## NA,                             
##          "republicans",                    
##          "war",                            
##          NA}                0.3172867   145
## [4312] { 
## NA,                             
##          "people",                         
##          "republicans",                    
##          "war"}             0.3150985   144
## [4313] { 
## NA,                             
##          "people",                         
##          "republicans",                    
##          NA}                0.3282276   150
## [4314] { "people",                         
##          "republicans",                    
##          "war",                            
##          NA}                0.3282276   150
## [4315] { 
## NA,                             
##          "polls",                          
##          "war",                            
##          NA}                0.3698031   169
## [4316] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "war"}             0.3632385   166
## [4317] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          NA}                0.4463895   204
## [4318] { "people",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3763676   172
## [4319] { 
## NA,                             
##          "people",                         
##          "war",                            
##          NA}                0.3807440   174
## [4320] { 
## NA,                             
##          "username",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [4321] { 
## NA,                             
##          "bushsux",                        
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4322] { 
## NA,                             
##          "admin",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [4323] { 
## NA,                             
##          "select",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3435449   157
## [4324] { 
## NA,                             
##          "homepage",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3172867   145
## [4325] { 
## NA,                             
##          "section",                        
##          NA,                               
##          NA),                              
##         c(NA}               0.3194748   146
## [4326] { 
## NA,                             
##          "challenge",                      
##          NA,                               
##          NA),                              
##         c(NA}               0.3676149   168
## [4327] { 
## NA,                             
##          "challenge",                      
##          "people",                         
##          NA),                              
##         c(NA}               0.3041575   139
## [4328] { "challenge",                      
##          "people",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3041575   139
## [4329] { 
## NA,                             
##          "challenge",                      
##          "people",                         
##          NA,                               
##          NA)}               0.3041575   139
## [4330] { 
## NA,                             
##          "challenge",                      
##          "people",                         
##          NA,                               
##         c(NA}               0.3107221   142
## [4331] { 
## NA,                             
##          "general",                        
##          "labor",                          
##          NA),                              
##         c(NA}               0.3041575   139
## [4332] { "general",                        
##          "labor",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3041575   139
## [4333] { 
## NA,                             
##          "campaign",                       
##          "labor",                          
##          NA),                              
##         c(NA}               0.3085339   141
## [4334] { "campaign",                       
##          "labor",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4335] { 
## NA,                             
##          "labor",                          
##          "polls",                          
##          NA),                              
##         c(NA}               0.3129103   143
## [4336] { "labor",                          
##          "polls",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3129103   143
## [4337] { 
## NA,                             
##          "labor",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3873085   177
## [4338] { 
## NA,                             
##          "labor",                          
##          "people",                         
##          NA),                              
##         c(NA}               0.3260394   149
## [4339] { "labor",                          
##          "people",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3260394   149
## [4340] { 
## NA,                             
##          "general",                        
##          "labor",                          
##          NA,                               
##          NA)}               0.3041575   139
## [4341] { 
## NA,                             
##          "campaign",                       
##          "labor",                          
##          NA,                               
##          NA)}               0.3085339   141
## [4342] { 
## NA,                             
##          "labor",                          
##          "polls",                          
##          NA,                               
##          NA)}               0.3129103   143
## [4343] { 
## NA,                             
##          "labor",                          
##          "people",                         
##          NA,                               
##          NA)}               0.3260394   149
## [4344] { 
## NA,                             
##          "security",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3107221   142
## [4345] { 
## NA,                             
##          "force",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4346] { 
## NA,                             
##          "hard",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [4347] { 
## NA,                             
##          "important",                      
##          NA,                               
##          NA),                              
##         c(NA}               0.3632385   166
## [4348] { 
## NA,                             
##          "media",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3041575   139
## [4349] { "media",                          
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3041575   139
## [4350] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##          NA),                              
##         c(NA}               0.3019694   138
## [4351] { "bushs",                          
##          "media",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [4352] { "campaign",                       
##          "general",                        
##          "media",                          
##          NA),                              
##         c(NA}               0.3085339   141
## [4353] { "general",                        
##          "media",                          
##          "polls",                          
##          NA),                              
##         c(NA}               0.3019694   138
## [4354] { 
## NA,                             
##          "general",                        
##          "media",                          
##          NA),                              
##         c(NA}               0.3282276   150
## [4355] { "general",                        
##          "media",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3282276   150
## [4356] { "general",                        
##          "media",                          
##          "people",                         
##          NA),                              
##         c(NA}               0.3129103   143
## [4357] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##          NA),                              
##         c(NA}               0.3150985   144
## [4358] { "campaign",                       
##          "media",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3150985   144
## [4359] { "campaign",                       
##          "media",                          
##          "people",                         
##          NA),                              
##         c(NA}               0.3041575   139
## [4360] { 
## NA,                             
##          "media",                          
##          "voters",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [4361] { "media",                          
##          "voters",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4362] { 
## NA,                             
##          "media",                          
##          "polls",                          
##          NA),                              
##         c(NA}               0.3129103   143
## [4363] { "media",                          
##          "polls",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3129103   143
## [4364] { "media",                          
##          "people",                         
##          "polls",                          
##          NA),                              
##         c(NA}               0.3019694   138
## [4365] { 
## NA,                             
##          "media",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3741794   171
## [4366] { 
## NA,                             
##          "media",                          
##          "people",                         
##          NA),                              
##         c(NA}               0.3260394   149
## [4367] { "media",                          
##          "people",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3260394   149
## [4368] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##          NA),                              
##         c(NA}               0.3019694   138
## [4369] { "bushs",                          
##          "national",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [4370] { 
## NA,                             
##          "general",                        
##          "national",                       
##          NA),                              
##         c(NA}               0.3150985   144
## [4371] { "general",                        
##          "national",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3150985   144
## [4372] { "general",                        
##          "national",                       
##          "people",                         
##          NA),                              
##         c(NA}               0.3063457   140
## [4373] { 
## NA,                             
##          "campaign",                       
##          "national",                       
##          NA),                              
##         c(NA}               0.3063457   140
## [4374] { "campaign",                       
##          "national",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3063457   140
## [4375] { 
## NA,                             
##          "national",                       
##          "voters",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [4376] { "national",                       
##          "voters",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4377] { 
## NA,                             
##          "national",                       
##          "polls",                          
##          NA),                              
##         c(NA}               0.3107221   142
## [4378] { "national",                       
##          "polls",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3107221   142
## [4379] { 
## NA,                             
##          "national",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3391685   155
## [4380] { 
## NA,                             
##          "national",                       
##          "people",                         
##          NA),                              
##         c(NA}               0.3172867   145
## [4381] { "national",                       
##          "people",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3172867   145
## [4382] { 
## NA,                             
##          "put",                            
##          NA,                               
##          NA),                              
##         c(NA}               0.3238512   148
## [4383] { 
## NA,                             
##          "elections",                      
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4384] { 
## NA,                             
##          "candidates",                     
##          NA,                               
##          NA),                              
##         c(NA}               0.3172867   145
## [4385] { 
## NA,                             
##          "candidates",                     
##          "people",                         
##          NA),                              
##         c(NA}               0.3041575   139
## [4386] { "candidates",                     
##          "people",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3041575   139
## [4387] { 
## NA,                             
##          "meteor",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3129103   143
## [4388] { 
## NA,                             
##          "military",                       
##          NA,                               
##          NA),                              
##         c(NA}               0.3107221   142
## [4389] { 
## NA,                             
##          "bushs",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3019694   138
## [4390] { "bushs",                          
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [4391] { "campaign",                       
##          "general",                        
##          "vote",                           
##          NA),                              
##         c(NA}               0.3129103   143
## [4392] { "general",                        
##          "polls",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3085339   141
## [4393] { 
## NA,                             
##          "general",                        
##          "vote",                           
##          NA),                              
##         c(NA}               0.3238512   148
## [4394] { "general",                        
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3238512   148
## [4395] { "general",                        
##          "people",                         
##          "vote",                           
##          NA),                              
##         c(NA}               0.3129103   143
## [4396] { "campaign",                       
##          "polls",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3019694   138
## [4397] { 
## NA,                             
##          "campaign",                       
##          "vote",                           
##          NA),                              
##         c(NA}               0.3172867   145
## [4398] { "campaign",                       
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3172867   145
## [4399] { "campaign",                       
##          "people",                         
##          "vote",                           
##          NA),                              
##         c(NA}               0.3063457   140
## [4400] { 
## NA,                             
##          "vote",                           
##          "voters",                         
##          NA),                              
##         c(NA}               0.3085339   141
## [4401] { "vote",                           
##          "voters",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3085339   141
## [4402] { 
## NA,                             
##          "polls",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3216630   147
## [4403] { "polls",                          
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3216630   147
## [4404] { "people",                         
##          "polls",                          
##          "vote",                           
##          NA),                              
##         c(NA}               0.3085339   141
## [4405] { 
## NA,                             
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3369803   154
## [4406] { 
## NA,                             
##          "people",                         
##          "vote",                           
##          NA),                              
##         c(NA}               0.3216630   147
## [4407] { "people",                         
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3216630   147
## [4408] { 
## NA,                             
##          "report",                         
##          NA,                               
##          NA),                              
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##          "national",                       
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## [4734] { "national",                       
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##         c(NA}               0.3479212   159
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##          "people",                         
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##         c(NA}               0.3063457   140
## [4744] { 
## NA,                             
##          "bushs",                          
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## [4748] { "elections",                      
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## NA,                             
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## [4752] { "elections",                      
##          "people",                         
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##          NA,                               
##         c(NA}               0.3063457   140
## [4753] { 
## NA,                             
##          "elections",                      
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##          NA,                               
##         c(NA}               0.3304158   151
## [4754] { 
## NA,                             
##          "candidates",                     
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## [4755] { 
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##          "candidates",                     
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##          "people",                         
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## [4756] { "candidates",                     
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##          "people",                         
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## [4757] { 
## NA,                             
##          "campaign",                       
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##         c(NA}               0.3216630   147
## [4759] { 
## NA,                             
##          "meteor",                         
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##          NA,                               
##         c(NA}               0.3019694   138
## [4760] { 
## NA,                             
##          "military",                       
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## [4764] { 
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##          "polls",                          
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## [4766] { 
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## [4767] { 
## NA,                             
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## [4768] { "bushs",                          
##          "people",                         
##          "vote",                           
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## [4769] { 
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## [4778] { 
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##         c(NA}               0.3194748   146
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##          "voters",                         
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##          "people",                         
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##          "people",                         
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##         c(NA}               0.3150985   144
## [4795] { 
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##          "vote",                           
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##         c(NA}               0.3041575   139
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##         c(NA}               0.3304158   151
## [4798] { 
## NA,                             
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##          "voters",                         
##         c(NA}               0.3172867   145
## [4799] { "people",                         
##          "vote",                           
##          "voters",                         
##          NA,                               
##         c(NA}               0.3172867   145
## [4800] { 
## NA,                             
##          "polls",                          
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##         c(NA}               0.3369803   154
## [4801] { 
## NA,                             
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##         c(NA}               0.3238512   148
## [4802] { "people",                         
##          "polls",                          
##          "vote",                           
##          NA,                               
##         c(NA}               0.3238512   148
## [4803] { 
## NA,                             
##          "people",                         
##          "vote",                           
##          NA,                               
##         c(NA}               0.3522976   161
## [4804] { 
## NA,                             
##          "bushs",                          
##          "lead",                           
##          NA,                               
##         c(NA}               0.3107221   142
## [4805] { 
## NA,                             
##          "bushs",                          
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##         c(NA}               0.3129103   143
## [4806] { "bushs",                          
##          "campaign",                       
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##          NA,                               
##         c(NA}               0.3129103   143
## [4807] { "bushs",                          
##          "campaign",                       
##          "general",                        
##          "people",                         
##         c(NA}               0.3041575   139
## [4808] { 
## NA,                             
##          "bushs",                          
##          "general",                        
##          "voters",                         
##         c(NA}               0.3085339   141
## [4809] { "bushs",                          
##          "general",                        
##          "voters",                         
##          NA,                               
##         c(NA}               0.3085339   141
## [4810] { 
## NA,                             
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##          "polls",                          
##         c(NA}               0.3107221   142
## [4811] { "bushs",                          
##          "general",                        
##          "polls",                          
##          NA,                               
##         c(NA}               0.3107221   142
## [4812] { "bushs",                          
##          "general",                        
##          "people",                         
##          "polls",                          
##         c(NA}               0.3019694   138
## [4813] { 
## NA,                             
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## [4814] { 
## NA,                             
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##          "people",                         
##         c(NA}               0.3260394   149
## [4815] { "bushs",                          
##          "general",                        
##          "people",                         
##          NA,                               
##         c(NA}               0.3260394   149
## [4816] { 
## NA,                             
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##          "campaign",                       
##          "polls",                          
##         c(NA}               0.3107221   142
## [4817] { "bushs",                          
##          "campaign",                       
##          "polls",                          
##          NA,                               
##         c(NA}               0.3107221   142
## [4818] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
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##         c(NA}               0.3238512   148
## [4819] { 
## NA,                             
##          "bushs",                          
##          "campaign",                       
##          "people",                         
##         c(NA}               0.3107221   142
## [4820] { "bushs",                          
##          "campaign",                       
##          "people",                         
##          NA,                               
##         c(NA}               0.3107221   142
## [4821] { 
## NA,                             
##          "bushs",                          
##          "polls",                          
##          "voters",                         
##         c(NA}               0.3063457   140
## [4822] { "bushs",                          
##          "polls",                          
##          "voters",                         
##          NA,                               
##         c(NA}               0.3063457   140
## [4823] { 
## NA,                             
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##          "voters",                         
##          NA,                               
##         c(NA}               0.3260394   149
## [4824] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          "voters",                         
##         c(NA}               0.3085339   141
## [4825] { "bushs",                          
##          "people",                         
##          "voters",                         
##          NA,                               
##         c(NA}               0.3085339   141
## [4826] { 
## NA,                             
##          "bushs",                          
##          "polls",                          
##          NA,                               
##         c(NA}               0.3347921   153
## [4827] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          "polls",                          
##         c(NA}               0.3150985   144
## [4828] { "bushs",                          
##          "people",                         
##          "polls",                          
##          NA,                               
##         c(NA}               0.3150985   144
## [4829] { 
## NA,                             
##          "bushs",                          
##          "people",                         
##          NA,                               
##         c(NA}               0.3413567   156
## [4830] { 
## NA,                             
##          "million",                        
##          "polls",                          
##          NA,                               
##         c(NA}               0.3041575   139
## [4831] { 
## NA,                             
##          "million",                        
##          "people",                         
##          NA,                               
##         c(NA}               0.3326039   152
## [4832] { 
## NA,                             
##          "dem",                            
##          "general",                        
##          NA,                               
##         c(NA}               0.3041575   139
## [4833] { 
## NA,                             
##          "dem",                            
##          "people",                         
##          NA,                               
##         c(NA}               0.3085339   141
## [4834] { 
## NA,                             
##          "campaign",                       
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##          "lead",                           
##         c(NA}               0.3041575   139
## [4835] { "campaign",                       
##          "general",                        
##          "lead",                           
##          NA,                               
##         c(NA}               0.3041575   139
## [4836] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "polls",                          
##         c(NA}               0.3019694   138
## [4837] { "general",                        
##          "lead",                           
##          "polls",                          
##          NA,                               
##         c(NA}               0.3019694   138
## [4838] { 
## NA,                             
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## [4839] { 
## NA,                             
##          "general",                        
##          "lead",                           
##          "people",                         
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## [4840] { "general",                        
##          "lead",                           
##          "people",                         
##          NA,                               
##         c(NA}               0.3260394   149
## [4841] { 
## NA,                             
##          "lead",                           
##          "numbers",                        
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## NA,                             
##          "campaign",                       
##          "lead",                           
##          NA,                               
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## [4843] { 
## NA,                             
##          "campaign",                       
##          "lead",                           
##          "people",                         
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## [4844] { "campaign",                       
##          "lead",                           
##          "people",                         
##          NA,                               
##         c(NA}               0.3107221   142
## [4845] { 
## NA,                             
##          "lead",                           
##          "voters",                         
##          NA,                               
##         c(NA}               0.3194748   146
## [4846] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          "voters",                         
##         c(NA}               0.3085339   141
## [4847] { "lead",                           
##          "people",                         
##          "voters",                         
##          NA,                               
##         c(NA}               0.3085339   141
## [4848] { 
## NA,                             
##          "lead",                           
##          "polls",                          
##          NA,                               
##         c(NA}               0.3260394   149
## [4849] { 
## NA,                             
##          "lead",                           
##          "people",                         
##          "polls",                          
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##          "people",                         
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## [4888] { "numbers",                        
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##          "numbers",                        
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## NA,                             
##          "american",                       
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## NA,                             
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## NA,                             
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## NA,                             
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## NA,                             
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## NA,                             
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##         c(NA}               0.3238512   148
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## NA,                             
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##         c(NA}               0.3741794   171
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## NA,                             
##          "people",                         
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##         c(NA}               0.3763676   172
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## NA,                             
##          "people",                         
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##         c(NA}               0.3107221   142
## [4910] { 
## NA,                             
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## [4911] { "campaign",                       
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## [4912] { 
## NA,                             
##          "campaign",                       
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##          NA}                0.3172867   145
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## NA,                             
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## [4914] { "campaign",                       
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##          "people",                         
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## [4915] { 
## NA,                             
##          "campaign",                       
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##          "people",                         
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## [4916] { 
## NA,                             
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##          "voters",                         
##          NA}                0.3129103   143
## [4917] { "important",                      
##          "people",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3063457   140
## [4918] { 
## NA,                             
##          "important",                      
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##          "voters",                         
##          NA}                0.3172867   145
## [4919] { 
## NA,                             
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##          "polls",                          
##          NA}                0.3282276   150
## [4920] { "elections",                      
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##          "national",                       
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## [4921] { "general",                        
##          "media",                          
##          "national",                       
##          "people",                         
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## NA,                             
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##          "people"}          0.3129103   143
## [4925] { "general",                        
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## [4926] { 
## NA,                             
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##          NA}                0.3019694   138
## [4927] { 
## NA,                             
##          "media",                          
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##          "people",                         
##          NA}                0.3172867   145
## [4928] { "elections",                      
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##          "media",                          
##          "people",                         
##          "vote"}            0.3019694   138
## [4929] { 
## NA,                             
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## [4930] { 
## NA,                             
##          "elections",                      
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##          "people",                         
##          NA}                0.3085339   141
## [4931] { "bushs",                          
##          "general",                        
##          "media",                          
##          "people",                         
##          "vote"}            0.3041575   139
## [4932] { 
## NA,                             
##          "bushs",                          
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##          "vote",                           
##          NA}                0.3041575   139
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## NA,                             
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##          "vote",                           
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## [4934] { 
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##          "people",                         
##          "vote"}            0.3172867   145
## [4935] { "general",                        
##          "media",                          
##          "people",                         
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##          NA}                0.3172867   145
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## NA,                             
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##          "polls",                          
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##          NA}                0.3041575   139
## [4937] { 
## NA,                             
##          "media",                          
##          "people",                         
##          "vote",                           
##          NA}                0.3216630   147
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## NA,                             
##          "bushs",                          
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##          NA}                0.3107221   142
## [4939] { 
## NA,                             
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##          "people"}          0.3041575   139
## [4940] { "bushs",                          
##          "general",                        
##          "media",                          
##          "people",                         
##          NA}                0.3041575   139
## [4941] { 
## NA,                             
##          "bushs",                          
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##          "polls",                          
##          NA}                0.3019694   138
## [4942] { 
## NA,                             
##          "bushs",                          
##          "media",                          
##          "people",                         
##          NA}                0.3107221   142
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## NA,                             
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##          NA}                0.3063457   140
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## NA,                             
##          "lead",                           
##          "media",                          
##          "people",                         
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## NA,                             
##          "campaign",                       
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##          "media",                          
##          NA}                0.3172867   145
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## NA,                             
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##          "media",                          
##          "people"}          0.3085339   141
## [4947] { "campaign",                       
##          "general",                        
##          "media",                          
##          "people",                         
##          NA}                0.3085339   141
## [4948] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "voters",                         
##          NA}                0.3172867   145
## [4949] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "people",                         
##          "voters"}          0.3107221   142
## [4950] { "general",                        
##          "media",                          
##          "people",                         
##          "voters",                         
##          NA}                0.3107221   142
## [4951] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "polls",                          
##          NA}                0.3150985   144
## [4952] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "people",                         
##          "polls"}           0.3085339   141
## [4953] { "general",                        
##          "media",                          
##          "people",                         
##          "polls",                          
##          NA}                0.3085339   141
## [4954] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "people",                         
##          NA}                0.3413567   156
## [4955] { 
## NA,                             
##          "media",                          
##          "numbers",                        
##          "people",                         
##          NA}                0.3019694   138
## [4956] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##          "polls",                          
##          NA}                0.3019694   138
## [4957] { 
## NA,                             
##          "campaign",                       
##          "media",                          
##          "people",                         
##          NA}                0.3129103   143
## [4958] { 
## NA,                             
##          "media",                          
##          "people",                         
##          "voters",                         
##          NA}                0.3172867   145
## [4959] { 
## NA,                             
##          "media",                          
##          "people",                         
##          "polls",                          
##          NA}                0.3150985   144
## [4960] { 
## NA,                             
##          "elections",                      
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##          "national",                       
##          NA}                0.3019694   138
## [4961] { 
## NA,                             
##          "elections",                      
##          "national",                       
##          "people",                         
##          NA}                0.3063457   140
## [4962] { 
## NA,                             
##          "general",                        
##          "national",                       
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## NA,                             
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##          "national",                       
##          "people",                         
##          "vote"}            0.3150985   144
## [4964] { "general",                        
##          "national",                       
##          "people",                         
##          "vote",                           
##          NA}                0.3150985   144
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## NA,                             
##          "national",                       
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##          "voters",                         
##          NA}                0.3063457   140
## [4966] { 
## NA,                             
##          "national",                       
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##          "vote",                           
##          NA}                0.3063457   140
## [4967] { 
## NA,                             
##          "national",                       
##          "people",                         
##          "vote",                           
##          NA}                0.3216630   147
## [4968] { 
## NA,                             
##          "bushs",                          
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##          "national",                       
##          NA}                0.3107221   142
## [4969] { 
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##          "national",                       
##          "people"}          0.3041575   139
## [4970] { "bushs",                          
##          "general",                        
##          "national",                       
##          "people",                         
##          NA}                0.3041575   139
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## NA,                             
##          "bushs",                          
##          "national",                       
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##          NA}                0.3019694   138
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## NA,                             
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##          NA}                0.3041575   139
## [4973] { 
## NA,                             
##          "bushs",                          
##          "national",                       
##          "people",                         
##          NA}                0.3129103   143
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## NA,                             
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##          NA}                0.3019694   138
## [4975] { 
## NA,                             
##          "lead",                           
##          "national",                       
##          "people",                         
##          NA}                0.3041575   139
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## NA,                             
##          "campaign",                       
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## NA,                             
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##          "national",                       
##          "voters",                         
##          NA}                0.3194748   146
## [4978] { 
## NA,                             
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##          "national",                       
##          "people",                         
##          "voters"}          0.3129103   143
## [4979] { "general",                        
##          "national",                       
##          "people",                         
##          "voters",                         
##          NA}                0.3129103   143
## [4980] { 
## NA,                             
##          "general",                        
##          "national",                       
##          "polls",                          
##          NA}                0.3150985   144
## [4981] { 
## NA,                             
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##          "people",                         
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## [4982] { "general",                        
##          "national",                       
##          "people",                         
##          "polls",                          
##          NA}                0.3085339   141
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## NA,                             
##          "general",                        
##          "national",                       
##          "people",                         
##          NA}                0.3391685   155
## [4984] { 
## NA,                             
##          "national",                       
##          "numbers",                        
##          "people",                         
##          NA}                0.3019694   138
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## NA,                             
##          "campaign",                       
##          "national",                       
##          "people",                         
##          NA}                0.3063457   140
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## NA,                             
##          "national",                       
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##          "voters",                         
##          NA}                0.3085339   141
## [4987] { 
## NA,                             
##          "national",                       
##          "people",                         
##          "voters",                         
##          NA}                0.3260394   149
## [4988] { 
## NA,                             
##          "national",                       
##          "people",                         
##          "polls",                          
##          NA}                0.3216630   147
## [4989] { "campaign",                       
##          "people",                         
##          "place",                          
##          "polls",                          
##          NA}                0.3019694   138
## [4990] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "place",                          
##          NA}                0.3041575   139
## [4991] { 
## NA,                             
##          "people",                         
##          "place",                          
##          "polls",                          
##          NA}                0.3019694   138
## [4992] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "put",                            
##          NA}                0.3150985   144
## [4993] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "polls",                          
##          "put"}             0.3041575   139
## [4994] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "put",                            
##          NA}                0.3172867   145
## [4995] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "put",                            
##          NA}                0.3216630   147
## [4996] { 
## NA,                             
##          "polls",                          
##          "put",                            
##          "voters",                         
##          NA}                0.3019694   138
## [4997] { 
## NA,                             
##          "people",                         
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## [5141] { "bushs",                          
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## [5164] { 
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## [5174] { "million",                        
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## [5175] { 
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## [5180] { "million",                        
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## [5196] { 
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## [5198] { "dem",                            
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## [5199] { 
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## [5200] { "dem",                            
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## [5204] { "dem",                            
##          "iraq",                           
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##          "people",                         
##          "polls",                          
##          "voters"}          0.3085339   141
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##          "people",                         
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##          "war"}             0.3063457   140
## [5215] { "campaign",                       
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##          "people",                         
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## NA,                             
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## NA,                             
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##          "people",                         
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## [5220] { "dem",                            
##          "people",                         
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##          "voters",                         
##          NA}                0.3019694   138
## [5221] { "dem",                            
##          "people",                         
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##          NA}                0.3019694   138
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##          "people",                         
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## [5224] { 
## NA,                             
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## [5225] { "dem",                            
##          "people",                         
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##          NA}                0.3085339   141
## [5226] { 
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## [5227] { 
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##          "polls",                          
##          "voters",                         
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## [5228] { 
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##          "people",                         
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## [5229] { "dem",                            
##          "polls",                          
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##          "voters",                         
##          "war"}             0.3063457   140
## [5231] { "dem",                            
##          "people",                         
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## [5234] { 
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## [5235] { "dem",                            
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## [5238] { 
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##          "people",                         
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##          "people"}          0.3019694   138
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##          "people",                         
##          "voters",                         
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##          "people",                         
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## [5250] { "general",                        
##          "lead",                           
##          "people",                         
##          "polls",                          
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##          "people",                         
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## [5257] { "campaign",                       
##          "lead",                           
##          "people",                         
##          "voters",                         
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##          "people",                         
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## [5260] { "campaign",                       
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##          "people",                         
##          "polls",                          
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##          "voters",                         
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##          "people",                         
##          "polls",                          
##          "voters"}          0.3041575   139
## [5264] { "lead",                           
##          "people",                         
##          "polls",                          
##          "voters",                         
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## NA,                             
##          "lead",                           
##          "people",                         
##          "voters",                         
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## NA,                             
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##          "people",                         
##          "polls",                          
##          NA}                0.3391685   155
## [5267] { "lead",                           
##          "people",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3041575   139
## [5268] { 
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##          "lead",                           
##          "people",                         
##          "war",                            
##          NA}                0.3063457   140
## [5269] { "general",                        
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3019694   138
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##          "races",                          
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## [5275] { "campaign",                       
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##          "voters",                         
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##          "people",                         
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## [5279] { "campaign",                       
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##          "people",                         
##          "voters",                         
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## NA,                             
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## [5282] { "campaign",                       
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## NA,                             
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##          "people",                         
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## NA,                             
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##          "voters",                         
##          NA}                0.3238512   148
## [5285] { 
## NA,                             
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##          "people",                         
##          "polls",                          
##          "voters"}          0.3150985   144
## [5286] { "general",                        
##          "people",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3216630   147
## [5287] { 
## NA,                             
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##          "voters",                         
##          NA}                0.3479212   159
## [5288] { "general",                        
##          "people",                         
##          "voters",                         
##          "war",                            
##          NA}                0.3019694   138
## [5289] { 
## NA,                             
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##          "people",                         
##          "polls",                          
##          NA}                0.3479212   159
## [5290] { "general",                        
##          "people",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3085339   141
## [5291] { 
## NA,                             
##          "general",                        
##          "people",                         
##          "war",                            
##          NA}                0.3150985   144
## [5292] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "races",                          
##          NA}                0.3041575   139
## [5293] { "american",                       
##          "numbers",                        
##          "people",                         
##          "races",                          
##          NA}                0.3019694   138
## [5294] { 
## NA,                             
##          "iraq",                           
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##          NA}                0.3041575   139
## [5295] { "iraq",                           
##          "numbers",                        
##          "people",                         
##          "races",                          
##          NA}                0.3041575   139
## [5296] { "campaign",                       
##          "numbers",                        
##          "people",                         
##          "races",                          
##          NA}                0.3019694   138
## [5297] { 
## NA,                             
##          "numbers",                        
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##          "races",                          
##          NA}                0.3019694   138
## [5298] { "numbers",                        
##          "people",                         
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##          NA}                0.3019694   138
## [5299] { "numbers",                        
##          "polls",                          
##          "races",                          
##          "voters",                         
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## [5300] { 
## NA,                             
##          "numbers",                        
##          "races",                          
##          "voters",                         
##          "war"}             0.3041575   139
## [5301] { 
## NA,                             
##          "numbers",                        
##          "races",                          
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## [5302] { 
## NA,                             
##          "numbers",                        
##          "people",                         
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##          "voters"}          0.3107221   142
## [5303] { "numbers",                        
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3085339   141
## [5304] { "numbers",                        
##          "people",                         
##          "races",                          
##          "voters",                         
##          "war"}             0.3041575   139
## [5305] { "numbers",                        
##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3150985   144
## [5306] { 
## NA,                             
##          "numbers",                        
##          "polls",                          
##          "races",                          
##          "war"}             0.3041575   139
## [5307] { 
## NA,                             
##          "numbers",                        
##          "polls",                          
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##          NA}                0.3172867   145
## [5308] { 
## NA,                             
##          "numbers",                        
##          "people",                         
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##          "races"}           0.3129103   143
## [5309] { "numbers",                        
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3085339   141
## [5310] { "numbers",                        
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3041575   139
## [5311] { "numbers",                        
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3172867   145
## [5312] { 
## NA,                             
##          "numbers",                        
##          "races",                          
##          "war",                            
##          NA}                0.3172867   145
## [5313] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "races",                          
##          "war"}             0.3129103   143
## [5314] { 
## NA,                             
##          "numbers",                        
##          "people",                         
##          "races",                          
##          NA}                0.3282276   150
## [5315] { "numbers",                        
##          "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3172867   145
## [5316] { "american",                       
##          "iraq",                           
##          "polls",                          
##          "races",                          
##          NA}                0.3019694   138
## [5317] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "races",                          
##          NA}                0.3085339   141
## [5318] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "people",                         
##          "races"}           0.3063457   140
## [5319] { "american",                       
##          "iraq",                           
##          "people",                         
##          "races",                          
##          NA}                0.3129103   143
## [5320] { "american",                       
##          "campaign",                       
##          "polls",                          
##          "races",                          
##          NA}                0.3063457   140
## [5321] { "american",                       
##          "campaign",                       
##          "people",                         
##          "polls",                          
##          "races"}           0.3041575   139
## [5322] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "races",                          
##          NA}                0.3041575   139
## [5323] { 
## NA,                             
##          "american",                       
##          "campaign",                       
##          "people",                         
##          "races"}           0.3019694   138
## [5324] { "american",                       
##          "campaign",                       
##          "people",                         
##          "races",                          
##          NA}                0.3085339   141
## [5325] { "american",                       
##          "people",                         
##          "political",                      
##          "races",                          
##          NA}                0.3019694   138
## [5326] { "american",                       
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3041575   139
## [5327] { "american",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters"}          0.3019694   138
## [5328] { 
## NA,                             
##          "american",                       
##          "races",                          
##          "voters",                         
##          NA}                0.3129103   143
## [5329] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "races",                          
##          "voters"}          0.3107221   142
## [5330] { "american",                       
##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3150985   144
## [5331] { 
## NA,                             
##          "american",                       
##          "polls",                          
##          "races",                          
##          NA}                0.3194748   146
## [5332] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "polls",                          
##          "races"}           0.3172867   145
## [5333] { "american",                       
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3019694   138
## [5334] { "american",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3238512   148
## [5335] { 
## NA,                             
##          "american",                       
##          "races",                          
##          "war",                            
##          NA}                0.3085339   141
## [5336] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "races",                          
##          "war"}             0.3063457   140
## [5337] { 
## NA,                             
##          "american",                       
##          "people",                         
##          "races",                          
##          NA}                0.3304158   151
## [5338] { "american",                       
##          "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3129103   143
## [5339] { 
## NA,                             
##          "campaign",                       
##          "iraq",                           
##          "polls",                          
##          "races"}           0.3019694   138
## [5340] { "campaign",                       
##          "iraq",                           
##          "polls",                          
##          "races",                          
##          NA}                0.3085339   141
## [5341] { "campaign",                       
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "races"}           0.3041575   139
## [5342] { 
## NA,                             
##          "campaign",                       
##          "iraq",                           
##          "races",                          
##          NA}                0.3063457   140
## [5343] { 
## NA,                             
##          "campaign",                       
##          "iraq",                           
##          "people",                         
##          "races"}           0.3019694   138
## [5344] { "campaign",                       
##          "iraq",                           
##          "people",                         
##          "races",                          
##          NA}                0.3085339   141
## [5345] { 
## NA,                             
##          "iraq",                           
##          "political",                      
##          "races",                          
##          NA}                0.3063457   140
## [5346] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "political",                      
##          "races"}           0.3019694   138
## [5347] { "iraq",                           
##          "political",                      
##          "races",                          
##          "war",                            
##          NA}                0.3041575   139
## [5348] { "iraq",                           
##          "people",                         
##          "political",                      
##          "races",                          
##          NA}                0.3085339   141
## [5349] { 
## NA,                             
##          "iraq",                           
##          "polls",                          
##          "races",                          
##          "voters"}          0.3085339   141
## [5350] { "iraq",                           
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3129103   143
## [5351] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters"}          0.3063457   140
## [5352] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          "voters",                         
##          "war"}             0.3041575   139
## [5353] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          "voters",                         
##          NA}                0.3216630   147
## [5354] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "races",                          
##          "voters"}          0.3150985   144
## [5355] { "iraq",                           
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3085339   141
## [5356] { "iraq",                           
##          "people",                         
##          "races",                          
##          "voters",                         
##          "war"}             0.3041575   139
## [5357] { "iraq",                           
##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3194748   146
## [5358] { 
## NA,                             
##          "iraq",                           
##          "polls",                          
##          "races",                          
##          "war"}             0.3063457   140
## [5359] { 
## NA,                             
##          "iraq",                           
##          "polls",                          
##          "races",                          
##          NA}                0.3260394   149
## [5360] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "races"}           0.3194748   146
## [5361] { "iraq",                           
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3129103   143
## [5362] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3085339   141
## [5363] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3260394   149
## [5364] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          "war",                            
##          NA}                0.3194748   146
## [5365] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "races",                          
##          "war"}             0.3150985   144
## [5366] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "races",                          
##          NA}                0.3326039   152
## [5367] { "iraq",                           
##          "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3216630   147
## [5368] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "races",                          
##          "voters"}          0.3150985   144
## [5369] { "campaign",                       
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3194748   146
## [5370] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters"}          0.3150985   144
## [5371] { 
## NA,                             
##          "campaign",                       
##          "races",                          
##          "voters",                         
##          NA}                0.3216630   147
## [5372] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "races",                          
##          "voters"}          0.3172867   145
## [5373] { "campaign",                       
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3041575   139
## [5374] { "campaign",                       
##          "people",                         
##          "races",                          
##          "voters",                         
##          "war"}             0.3019694   138
## [5375] { "campaign",                       
##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3216630   147
## [5376] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "races",                          
##          "war"}             0.3107221   142
## [5377] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "races",                          
##          NA}                0.3369803   154
## [5378] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "polls",                          
##          "races"}           0.3326039   152
## [5379] { "campaign",                       
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3172867   145
## [5380] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3150985   144
## [5381] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3391685   155
## [5382] { 
## NA,                             
##          "campaign",                       
##          "races",                          
##          "war",                            
##          NA}                0.3150985   144
## [5383] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "races",                          
##          "war"}             0.3129103   143
## [5384] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "races",                          
##          NA}                0.3391685   155
## [5385] { "campaign",                       
##          "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3194748   146
## [5386] { 
## NA,                             
##          "political",                      
##          "races",                          
##          "voters",                         
##          NA}                0.3085339   141
## [5387] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "races",                          
##          "voters"}          0.3041575   139
## [5388] { "political",                      
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3041575   139
## [5389] { "people",                         
##          "political",                      
##          "races",                          
##          "voters",                         
##          NA}                0.3085339   141
## [5390] { 
## NA,                             
##          "political",                      
##          "polls",                          
##          "races",                          
##          NA}                0.3107221   142
## [5391] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "polls",                          
##          "races"}           0.3063457   140
## [5392] { "political",                      
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3063457   140
## [5393] { "people",                         
##          "political",                      
##          "polls",                          
##          "races",                          
##          "war"}             0.3019694   138
## [5394] { "people",                         
##          "political",                      
##          "polls",                          
##          "races",                          
##          NA}                0.3129103   143
## [5395] { 
## NA,                             
##          "political",                      
##          "races",                          
##          "war",                            
##          NA}                0.3129103   143
## [5396] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "races",                          
##          "war"}             0.3085339   141
## [5397] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "races",                          
##          NA}                0.3194748   146
## [5398] { "people",                         
##          "political",                      
##          "races",                          
##          "war",                            
##          NA}                0.3150985   144
## [5399] { 
## NA,                             
##          "polls",                          
##          "races",                          
##          "voters",                         
##          "war"}             0.3150985   144
## [5400] { 
## NA,                             
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3347921   153
## [5401] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters"}          0.3282276   150
## [5402] { "polls",                          
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3194748   146
## [5403] { "people",                         
##          "polls",                          
##          "races",                          
##          "voters",                         
##          "war"}             0.3150985   144
## [5404] { "people",                         
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3326039   152
## [5405] { 
## NA,                             
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3282276   150
## [5406] { 
## NA,                             
##          "people",                         
##          "races",                          
##          "voters",                         
##          "war"}             0.3238512   148
## [5407] { 
## NA,                             
##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3435449   157
## [5408] { "people",                         
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3282276   150
## [5409] { 
## NA,                             
##          "administration",                 
##          "people",                         
##          "races",                          
##          NA}                0.3019694   138
## [5410] { 
## NA,                             
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3326039   152
## [5411] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3282276   150
## [5412] { 
## NA,                             
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3544858   162
## [5413] { "people",                         
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3347921   153
## [5414] { 
## NA,                             
##          "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3413567   156
## [5415] { 
## NA,                             
##          "george",                         
##          "numbers",                        
##          "polls",                          
##          NA}                0.3019694   138
## [5416] { 
## NA,                             
##          "george",                         
##          "numbers",                        
##          "people",                         
##          NA}                0.3107221   142
## [5417] { "george",                         
##          "numbers",                        
##          "people",                         
##          "war",                            
##          NA}                0.3019694   138
## [5418] { "american",                       
##          "george",                         
##          "iraq",                           
##          "people",                         
##          NA}                0.3019694   138
## [5419] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "voters",                         
##          NA}                0.3041575   139
## [5420] { "american",                       
##          "george",                         
##          "people",                         
##          "voters",                         
##          NA}                0.3041575   139
## [5421] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "polls",                          
##          NA}                0.3063457   140
## [5422] { "american",                       
##          "george",                         
##          "people",                         
##          "polls",                          
##          NA}                0.3085339   141
## [5423] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "war",                            
##          NA}                0.3041575   139
## [5424] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "people",                         
##          "war"}             0.3019694   138
## [5425] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "people",                         
##          NA}                0.3172867   145
## [5426] { "american",                       
##          "george",                         
##          "people",                         
##          "war",                            
##          NA}                0.3107221   142
## [5427] { "george",                         
##          "iraq",                           
##          "people",                         
##          "political",                      
##          NA}                0.3041575   139
## [5428] { "george",                         
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          NA}                0.3041575   139
## [5429] { 
## NA,                             
##          "george",                         
##          "iraq",                           
##          "people",                         
##          NA}                0.3107221   142
## [5430] { "george",                         
##          "iraq",                           
##          "people",                         
##          "war",                            
##          NA}                0.3063457   140
## [5431] { 
## NA,                             
##          "campaign",                       
##          "george",                         
##          "polls",                          
##          NA}                0.3129103   143
## [5432] { 
## NA,                             
##          "campaign",                       
##          "george",                         
##          "people",                         
##          "polls"}           0.3063457   140
## [5433] { "campaign",                       
##          "george",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3041575   139
## [5434] { "campaign",                       
##          "george",                         
##          "people",                         
##          "polls",                          
##          "war"}             0.3041575   139
## [5435] { "campaign",                       
##          "george",                         
##          "people",                         
##          "polls",                          
##          NA}                0.3172867   145
## [5436] { 
## NA,                             
##          "campaign",                       
##          "george",                         
##          "people",                         
##          NA}                0.3107221   142
## [5437] { "campaign",                       
##          "george",                         
##          "people",                         
##          "war",                            
##          NA}                0.3041575   139
## [5438] { "george",                         
##          "people",                         
##          "political",                      
##          "voters",                         
##          NA}                0.3019694   138
## [5439] { "george",                         
##          "people",                         
##          "political",                      
##          "polls",                          
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## [5497] { "iraq",                           
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## [5504] { "iraq",                           
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## [5510] { "iraq",                           
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## [5512] { "iraq",                           
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## [5516] { "iraq",                           
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## [5517] { "campaign",                       
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## [5527] { "campaign",                       
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## [5618] { "american",                       
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## [5622] { "american",                       
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## [5651] { "american",                       
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##          "people",                         
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## [5675] { "campaign",                       
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##          "people",                         
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## [5682] { "campaign",                       
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##          "people",                         
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##          "war"}             0.3194748   146
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##          "people",                         
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##          "war"}             0.3216630   147
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## [5707] { "administration",                 
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## [5710] { "iraq",                           
##          "people",                         
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## [5714] { "iraq",                           
##          "political",                      
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##          "war"}             0.3194748   146
## [5716] { "iraq",                           
##          "people",                         
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##          "people",                         
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## [5724] { 
## NA,                             
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##          "people",                         
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##          "voters"}          0.3347921   153
## [5725] { "iraq",                           
##          "polls",                          
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##          "war"}             0.3238512   148
## [5727] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3435449   157
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## NA,                             
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##          NA}                0.3326039   152
## [5729] { 
## NA,                             
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##          "people",                         
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## [5730] { 
## NA,                             
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##          NA}                0.3501094   160
## [5731] { "iraq",                           
##          "people",                         
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##          NA}                0.3369803   154
## [5732] { "administration",                 
##          "iraq",                           
##          "people",                         
##          "polls",                          
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## NA,                             
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## NA,                             
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##          "iraq",                           
##          "people",                         
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## [5735] { 
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##          "voters",                         
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## [5819] { 
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##          NA}                0.3107221   142
## [5820] { "people",                         
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##          NA}                0.3107221   142
## [5821] { 
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##          NA}                0.3522976   161
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## NA,                             
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## [5823] { 
## NA,                             
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##          NA}                0.3938731   180
## [5824] { "people",                         
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3544858   162
## [5825] { 
## NA,                             
##          "people",                         
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##          NA}                0.3610503   165
## [5826] { "administration",                 
##          "people",                         
##          "republicans",                    
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## [5827] { 
## NA,                             
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## [5828] { 
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## [5830] { "administration",                 
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## [5833] { "people",                         
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## [5835] { 
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##          NA}                0.3632385   166
## [5836] { 
## NA,                             
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##          NA,                               
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## [5842] { 
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##          "people",                         
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##         c(NA}               0.3260394   149
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## NA,                             
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## [5866] { 
## NA,                             
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## [5875] { "general",                        
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##          "vote",                           
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##         c(NA}               0.3129103   143
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##          "polls",                          
##          "vote",                           
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##         c(NA}               0.3019694   138
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## [6104] { 
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## [6107] { 
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## [6125] { 
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## [6126] { 
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## [6127] { 
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##          "people",                         
##          "polls",                          
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##          "media",                          
##          "national",                       
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## [6129] { 
## NA,                             
##          "general",                        
##          "media",                          
##          "people",                         
##          "vote",                           
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## [6180] { 
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## [6191] { 
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## [6192] { 
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## [6193] { "numbers",                        
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## [6195] { 
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## [6196] { "numbers",                        
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## [6197] { 
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## [6198] { 
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##          NA}                0.3063457   140
## [6199] { "american",                       
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##          NA}                0.3019694   138
## [6201] { "american",                       
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## [6202] { 
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## [6203] { 
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##          NA}                0.3172867   145
## [6204] { 
## NA,                             
##          "american",                       
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##          "war",                            
##          NA}                0.3063457   140
## [6205] { 
## NA,                             
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##          NA}                0.3019694   138
## [6206] { "campaign",                       
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3041575   139
## [6207] { 
## NA,                             
##          "campaign",                       
##          "iraq",                           
##          "people",                         
##          "races",                          
##          NA}                0.3019694   138
## [6208] { 
## NA,                             
##          "iraq",                           
##          "people",                         
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##          "races",                          
##          NA}                0.3019694   138
## [6209] { 
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##          "iraq",                           
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3085339   141
## [6210] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters"}          0.3019694   138
## [6211] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3063457   140
## [6212] { 
## NA,                             
##          "iraq",                           
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3041575   139
## [6213] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3150985   144
## [6214] { "iraq",                           
##          "people",                         
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3041575   139
## [6215] { 
## NA,                             
##          "iraq",                           
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3063457   140
## [6216] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3019694   138
## [6217] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          NA}                0.3194748   146
## [6218] { "iraq",                           
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3085339   141
## [6219] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "races",                          
##          "war",                            
##          NA}                0.3150985   144
## [6220] { 
## NA,                             
##          "campaign",                       
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3150985   144
## [6221] { 
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##          "polls",                          
##          "races",                          
##          "voters"}          0.3107221   142
## [6222] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters",                         
##          NA}                0.3150985   144
## [6223] { 
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##          "people",                         
##          "races",                          
##          "voters",                         
##          NA}                0.3172867   145
## [6224] { "campaign",                       
##          "people",                         
##          "races",                          
##          "voters",                         
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##          NA}                0.3019694   138
## [6225] { 
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##          "campaign",                       
##          "polls",                          
##          "races",                          
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##          NA}                0.3107221   142
## [6226] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war"}             0.3085339   141
## [6227] { 
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##          "races",                          
##          NA}                0.3326039   152
## [6228] { "campaign",                       
##          "people",                         
##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3150985   144
## [6229] { 
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##          "campaign",                       
##          "people",                         
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##          NA}                0.3129103   143
## [6230] { 
## NA,                             
##          "people",                         
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##          "races",                          
##          "voters",                         
##          NA}                0.3041575   139
## [6231] { 
## NA,                             
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##          "polls",                          
##          "races",                          
##          NA}                0.3063457   140
## [6232] { "people",                         
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##          "polls",                          
##          "races",                          
##          "war",                            
##          NA}                0.3019694   138
## [6233] { 
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##          "people",                         
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##          "war",                            
##          NA}                0.3085339   141
## [6234] { 
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##          "polls",                          
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3150985   144
## [6235] { 
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##          "people",                         
##          "polls",                          
##          "races",                          
##          "voters",                         
##          "war"}             0.3107221   142
## [6236] { 
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##          "voters",                         
##          NA}                0.3282276   150
## [6237] { "people",                         
##          "polls",                          
##          "races",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3150985   144
## [6238] { 
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##          "people",                         
##          "races",                          
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##          NA}                0.3238512   148
## [6239] { 
## NA,                             
##          "people",                         
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##          "races",                          
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##          NA}                0.3282276   150
## [6240] { 
## NA,                             
##          "american",                       
##          "george",                         
##          "people",                         
##          "war",                            
##          NA}                0.3019694   138
## [6241] { 
## NA,                             
##          "campaign",                       
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##          "people",                         
##          "polls",                          
##          NA}                0.3063457   140
## [6242] { "campaign",                       
##          "george",                         
##          "people",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3019694   138
## [6243] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "political",                      
##          "war",                            
##          NA}                0.3019694   138
## [6244] { 
## NA,                             
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##          "people",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3085339   141
## [6245] { "george",                         
##          "people",                         
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3019694   138
## [6246] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "voters",                         
##          "war",                            
##          NA}                0.3085339   141
## [6247] { 
## NA,                             
##          "george",                         
##          "people",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3085339   141
## [6248] { 
## NA,                             
##          "american",                       
##          "iraq",                           
##          "numbers",                        
##          "people",                         
##          NA}                0.3063457   140
## [6249] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "people",                         
##          "political",                      
##          NA}                0.3041575   139
## [6250] { "american",                       
##          "numbers",                        
##          "people",                         
##          "political",                      
##          "war",                            
##          NA}                0.3019694   138
## [6251] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "polls",                          
##          "voters",                         
##          NA}                0.3019694   138
## [6252] { "american",                       
##          "numbers",                        
##          "people",                         
##          "polls",                          
##          "voters",                         
##          NA}                0.3019694   138
## [6253] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "voters",                         
##          "war",                            
##          NA}                0.3041575   139
## [6254] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "people",                         
##          "voters",                         
##          "war"}             0.3019694   138
## [6255] { 
## NA,                             
##          "american",                       
##          "numbers",                        
##          "people",                         
##          "voters",                         
##          NA}                0.3129103   143
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## [6493] { 
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## [6495] { 
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## [6496] { 
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## [6497] { 
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## [6498] { "campaign",                       
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3019694   138
## [6499] { 
## NA,                             
##          "campaign",                       
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "war",                            
##          NA}                0.3063457   140
## [6500] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "political",                      
##          "polls",                          
##          "voters",                         
##          NA}                0.3019694   138
## [6501] { "iraq",                           
##          "people",                         
##          "political",                      
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3041575   139
## [6502] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "political",                      
##          "voters",                         
##          "war",                            
##          NA}                0.3107221   142
## [6503] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "political",                      
##          "polls",                          
##          "war",                            
##          NA}                0.3063457   140
## [6504] { 
## NA,                             
##          "iraq",                           
##          "people",                         
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3129103   143
## [6505] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "political",                      
##          "polls",                          
##          "voters",                         
##          NA}                0.3019694   138
## [6506] { "campaign",                       
##          "people",                         
##          "political",                      
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3019694   138
## [6507] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "political",                      
##          "polls",                          
##          "war",                            
##          NA}                0.3063457   140
## [6508] { 
## NA,                             
##          "campaign",                       
##          "people",                         
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3238512   148
## [6509] { 
## NA,                             
##          "people",                         
##          "political",                      
##          "polls",                          
##          "voters",                         
##          "war",                            
##          NA}                0.3129103   143
## [6510] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "people",                         
##          "vote",                           
##          NA,                               
##          NA),                              
##         c(NA}               0.3019694   138
## [6511] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "people",                         
##          "voters",                         
##          NA,                               
##          NA),                              
##         c(NA}               0.3041575   139
## [6512] { 
## NA,                             
##          "campaign",                       
##          "general",                        
##          "people",                         
##          "polls",                          
##          NA,                               
##          NA),                              
##         c(NA}               0.3107221   142

8. Which itemset has the greatest support out of all the frequent itemsets that you identified in question 7?

inspect(head(sort(itemsets,by="support"),10)) 
##      items              support   count
## [1]  { NA}              0.9628009 440  
## [2]  { \nNA}            0.9496718 434  
## [3]  { \nNA,  NA}       0.9496718 434  
## [4]  {c(NA}             0.8774617 401  
## [5]  { \nNA, c(NA}      0.8774617 401  
## [6]  { NA, c(NA}        0.8774617 401  
## [7]  { \nNA,  NA, c(NA} 0.8774617 401  
## [8]  { NA)}             0.8446389 386  
## [9]  { NA), c(NA}       0.8446389 386  
## [10] { \nNA,  NA)}      0.8446389 386

NA itemset has the highest number of frequent itemsets with a total of 440 counts.

9. Use the Apriori algorithm (e.g., from the arules package) to find association rules. You may need to adjust the minimum support and confidence thresholds in order to get a reasonable number of rules (Hint: try starting your minimum support threshold between 10% and 20%)

rules <- apriori(trans,parameter=list(support=0.3,confidence=0.9,target="rules"))
## Apriori
## 
## Parameter specification:
##  confidence minval smax arem  aval originalSupport maxtime support minlen
##         0.9    0.1    1 none FALSE            TRUE       5     0.3      1
##  maxlen target  ext
##      10  rules TRUE
## 
## Algorithmic control:
##  filter tree heap memopt load sort verbose
##     0.1 TRUE TRUE  FALSE TRUE    2    TRUE
## 
## Absolute minimum support count: 137 
## 
## set item appearances ...[0 item(s)] done [0.00s].
## set transactions ...[9667 item(s), 457 transaction(s)] done [0.19s].
## sorting and recoding items ... [90 item(s)] done [0.00s].
## creating transaction tree ... done [0.00s].
## checking subsets of size 1 2 3 4 5 6 7 8 done [0.03s].
## writing ... [17343 rule(s)] done [0.00s].
## creating S4 object  ... done [0.01s].
summary(rules) 
## set of 17343 rules
## 
## rule length distribution (lhs + rhs):sizes
##    1    2    3    4    5    6    7    8 
##    2  265 2143 5435 5834 3005  635   24 
## 
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   1.000   4.000   5.000   4.644   5.000   8.000 
## 
## summary of quality measures:
##     support         confidence        coverage           lift       
##  Min.   :0.3020   Min.   :0.9000   Min.   :0.3020   Min.   :0.9373  
##  1st Qu.:0.3063   1st Qu.:0.9359   1st Qu.:0.3151   1st Qu.:1.0386  
##  Median :0.3129   Median :0.9691   Median :0.3260   Median :1.7216  
##  Mean   :0.3201   Mean   :0.9632   Mean   :0.3327   Mean   :1.5522  
##  3rd Qu.:0.3260   3rd Qu.:0.9933   3rd Qu.:0.3414   3rd Qu.:1.8978  
##  Max.   :0.9628   Max.   :1.0000   Max.   :1.0000   Max.   :2.5725  
##      count      
##  Min.   :138.0  
##  1st Qu.:140.0  
##  Median :143.0  
##  Mean   :146.3  
##  3rd Qu.:149.0  
##  Max.   :440.0  
## 
## mining info:
##   data ntransactions support confidence
##  trans           457     0.3        0.9
##                                                                                        call
##  apriori(data = trans, parameter = list(support = 0.3, confidence = 0.9, target = "rules"))

An association rule tries to find certain regularities between two or more elements that reach a given level of support and confidence. At a minimum support threshold level of 0.3 and a 0.9 confidence level, the rules observed from the data set are 17343.

10. Write three interesting rules (in your opinion), and explain why each of the rules you chose is interesting

highLiftRules<-head(sort(rules,by="lift")) 
inspect(head(sort(rules,by="lift"),3))
##     lhs                                     rhs            support   confidence
## [1] { "iraq",  "republicans"}            => { "political"} 0.3129103 0.9794521 
## [2] { "iraq",  "republicans",  NA}       => { "political"} 0.3107221 0.9793103 
## [3] { "iraq",  "people",  "republicans"} => { "political"} 0.3107221 0.9793103 
##     coverage  lift     count
## [1] 0.3194748 2.572469 143  
## [2] 0.3172867 2.572097 142  
## [3] 0.3172867 2.572097 142

When compared to a random choice targeting model, lift measures how well an association rule targeting model performs at identifying cases with an elevated response (in relation to the population as a whole). From the 17343 rules observed, the {Iraq, republicans} -> {political}, {Iraq, republicans, NA} -> {political}, and {Iraq, people, republicans} -> {political} rules have the highest support at 0.9 level of confidence. Hence the best association rules of the model.