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: ICYMI Friday: Talking about why Congress should have been in Washington working to stop the sequester, not home for a long weekend.  Responser: More Scare tactics!!!! Get Back Down to DC and do your jobs
