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: About to speak on the House floor in favor of health reform. You can watch on C-SPAN.  Responser: It's a FOUNDATION to build on. Thank you for all your hard work Congresswoman DeGette.
