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: #TBT to this weekend at Comic Con when cast of @NBCGrimm did the "I'm the king of the world!" Titanic routine.  Responser: Hey. I am ur fan from India.. Juz love ur show. U n david makes a gr8 couple. I mostly comment on all of ur posts in Hope to get a rply from you. Love u guyz. U look gr8..
