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: Simple question I would like Mark Pryor to answer concerning his Obamacare votes: Should big businesses be treated better than families and Congress better than the American people?  Responser: i have another question, is pryor and his staff going to take the illegal subsidy?
