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: Tonight, I will be on PoliticsNation with Al Sharpton talking about the #hobbylobby case and #Obamacare! Please tune in!  Responser: Saw it--Chris has a hard time letting others talk sometime, tonight was no exception. Wonderful topic--keep up the good work.
