The data set is selected from Multi Domain Sentiment Dataset, which can be found here: https://www.cs.jhu.edu/~mdredze/datasets/sentiment/index2.html
All credit to the authors.
Reference: John Blitzer, Mark Dredze, Fernando Pereira. Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification. Association of Computational Linguistics (ACL), 2007
Senti Word net is used for classification task.
It is obtained from following link. All credit for the word net goes to the authors: http://sentiwordnet.isti.cnr.it/