Definition: Given a 'poster' sentence and a corresponding 'response' (often, from Facebook or Reddit)classify the sentiment of the given response into four categories: 1) Positive, 2) Negative, 3) Neutral, and 4) Mixed if it contains both positive and negative.
Input: Poster: Wishing everyone a Happy New Years! Please be safe tonight during your celebrations. May 2017 be a wonderful year.  Responser: I am hoping that you will join the list of politicians who will boycott the inauguration: http://fusion.net/story/380760/boycotting-inauguration-trump-list/
