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: Polk co GOP picnic. People are coming out in droves to get active in taking our country back. http://twitpic.com/e6clj  Responser: It was a wonderful picnic. Look for video of the event on the polkcountyrepublicans.com web page (their youtube page). Sean's speech was inspiring.
