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: Going to a baseball game with a communist dictator hours after a terrorist attack? We need the courage to fight Muslim terrorism head on, and I'll always put America's security first.  Responser: Really! He was in Cuba and watching game when it happened! Quit being a politician and be a representative. Dork!
