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: Absolutely disgusting: Planned Parenthood caught on tape trying to sell fetal body parts. It's time to finally end all federal government funding to Planned Parenthood.  Responser: Purely sick and evil yet not surprising. Sad.
