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: TUNE IN: Peter will join the Martin Bashir show on MSNBC at 4:20pm.  Responser: who wants to listen to Democratic spin......? waste of time........liberal,progressive,socialist spin............
