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: I'm proud to stand up for a woman's right to choose, defend the Affordable Care Act, and protect funding for Planned Parenthood along with my colleagues in the House Pro-Choice Caucus.  Responser: Thank you! Calling all moderate Republicans right now to consider an alternative and good luck in your 1st year!
