VADER Sentiment Analysis. VADER (Valence Aware Dictionary and sEntiment Reasoner) is a lexicon and rule-based sentiment analysis tool that is specifically attuned to sentiments expressed in social media, and works well on texts from other domains.
Or we could decided to delete all apostrophes that are preceded and followed by a letter. That way, there is no need anymore to maintain multiple versions of the same word.
Solved issue #66