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: #DemDebate = #MustSleepTV Thanks to Debbie Wasserman Schultz for a good night's sleep as the result of the best sleeping pill on earth - the Democratic Debate  Responser: It was during the play offs. Bad timing. I had to watch the seachickens loose today lol
