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: Did you see the New York Times Editorial about us fighting back against Super PACs?  Responser: I read the article and it made me go right to Claire's campaign website and make a donation.Support progressive women for Congress. Do it now! http://clairemccaskill.com/
