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: "No matter how many times I shake this Etch-a-Sketch, Mitt Romney is still wrong on women's health and wrong for New York."  Responser: That's because he'll never line-up right!
