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: Please tune in to watch me on Fox Business at 5:00 p.m. central. I will be discussing today's health care summit.  Responser: Obama got his behind handed back to him yesterday by the leaders of the emerging Republican Majority.
