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library(igraph)
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## Attaching package: 'igraph'
## The following objects are masked from 'package:stats':
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## decompose, spectrum
## The following object is masked from 'package:base':
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## union
g5 <- graph_from_literal(X-Mom-Dad-Wife, X-Wife, Wife-Mom, X-B:S, X-A, A-B, X-G-E, X-E )
plot(g5)