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: Trump's cynical sabotaging insurance coverage for real people, under current law, is not OK. Spread the word: California's health exchange is open for business, and open enrollment is still happening for the rest of this month. Send them to the Covered California website!  Responser: Keep up the good work Huffman!
