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: I support full and complete repeal of Obamacare. Chip in $5 now to support my campaign: http://www.davidrouzer.com/donate/  Responser: http://www.facebook.com/al.watkins.9#!/events/434544456577731/
