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: Democrats use Benghazi like it's a four-letter word. I'd like to remind them it's actually a place where four Americans died.  Responser: TRUTH lost ,STOP the World I want to get off.
