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: Sean voted earlier today in Weston. Remember to get out and vote in today's primary election in Wisconsin.  Responser: And you voted in your plaid shirt,YOHO!
