Whatsapp Chat Analysis

I have a group chat that is very active. Many of my friends have asked me " What exactly is data science?" This project will allow me to display to them, in an absorbable manner, some of the tools of the data science field. The chat needs to be uploaded and reshaped to run sentiment and time series analysis. I want to create a predictor and test it on a train test split to see if I can predict who likely sent messages. To meet the different data sources requirement, I will try to find something I can webscrape that can add to my analysis.