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: More on Peterson Trial coming up at 7pm on CLTV. Marcella Raymond reporting from Joliet. We talk the possibility of a mistrial.  Responser: Come to Lincolnwood and watch my city sticker trial August 28.
