These lists of words were extracted from WordNet Affect - and they
correspond to the WordNet synsets annotated with the six emotions of
interest: anger, disgust, fear, joy, sadness, surprise.

To read more about WordNet Affect and how the synset annotations were
performed, see:
Carlo Strapparava and Alessandro Valitutti, "WordNet-Affect: an affective
extension of WordNet". In Proceedings ofthe 4th International Conference
on Language Resources and Evaluation (LREC 2004), Lisbon, May 2004, pp.
1083-1086.