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: Great time in Randolph this weekend collecting nomination signatures, thanks to everyone who helped us out. I look forward to seeing more of you on the campaign trail.  Responser: Met your son Mike at Milton's caucus Saturday - chip off the old block! Glad to have you representing me.
