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 am on the Melissa Harris Perry show this morning on MSNBC. Tune in!  Responser: SHAME ON YOU MR MEEKS FOR BOYCOTTING ISRAEL S PRIME MINISTER. We'll keep in mind.
