salient

I actually (sort of) wrote one of these a while back (though I don't think I ever got to implementing tenses - possibly this would be somewhat easy to implement on top of whatever I already built there, but maybe not idk). In any case: > copulae verbs, linking verbs, terms that are often filtered (i.e. stop terms), question terms, time sensitive nouns, amplifiers, clauses, coordinating conjunctions, negations, conditionals (ORs), and contractions https://github.com/nyxtom/salient/

A while back when I used to work a lot with this stuff I wrote a library to do a lot of sentiment, tokenization, and part of speech tagging based on several corpus I came across when I realized natural didn't have what I needed at the time. https://github.com/nyxtom/salient