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: http://washingtonexaminer.com/opinion/editorials/2011/03/america-should-lead-world-stage-not-follow  Responser: Well if you listen to msnbc. He's our great best hope. Haha. They still have tingles but many have been jumping ship. Lol
