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: Alexander Statement on the One-Year Anniversary of the Health Care Law: http://1.usa.gov/elB37s  Responser: America does not need another $1 trillion + that will bankrupt America
