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: Do you want me to sing a song FOR you? Here's how;-) 12 days LEFT!! hee hee!! http://www.indiegogo.com/projects/lines/x/933166?c=activity  Responser: Do a show in Los Angeles. 1st comment
