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: RT @corygardnerco: Proud to stand with @BillCassidy and call for the Senate to take up bipartisan LNG legislation. #cosen #copolitics http://t.co/CftoWjV9o0  Responser: As long as its making USA citizens into job and career holders , excludes illegal immigrants and safe for the environment, promotes state and national gross domestic product without unions , should pass easily.
