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: Let's educate our way to a better economy. President speaks at 3 PM EST, 12 PM PST on improving graduation rates (The White House). HR 1586 will keep teachers in classroom & help students go farther in their education.  Responser: Number of teacher jobs HR 1586 saves by state: http://edlabor.house.gov/blog/2010/08/teachers-jobs-saved-by-hr-1586.shtml
