Hello guys! So, i have a sentiment analysis lucene project and i chose the Cranfield Collection. The thing is i am not sure if this is appropriate for sentiment analysis because it is mainly consisted of scientific articles.. The other options i have is to use a Twitter collection, Foursquare, Yelp, Wikipedia and more classic datasets like the Cranfield, 20 newsgroup and Time Magazine Articles. Do you think Cranfield is appropriate for sentiment analysis?