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 guess you cant update your status via phone if you want to be admin :) Won singles and doubles today with the scores of 64 75, Slava also won her singles with that score..that's teamwork!! Same schedule tomorrow--2nd and 5th.  Responser: ha ha! you guys are like twins now...
