7. The system of claim 6 , wherein pre-processing the plurality of labeled sentences comprises handling negation words in each of the plurality of labeled sentences.
7. The system of claim 6 , wherein pre-processing the plurality of labeled sentences comprises handling negation words in each of the plurality of labeled sentences. 9. The system of claim 7 , wherein handling the negation words comprises applying a parsing algorithm to join the negation words with those words of the sentence to which the negation applies.