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: Last night I submitted an amendment to end this #GOPshutdown. If you missed it, you can watch me discuss it on the House floor here: http://ow.ly/pE5R4  Responser: The views of a (sane) Libertarian (and I am not a Libertarian) -- https://soundcloud.com/hoover-institution/the-government-shutdown-and
