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: http://sportsillustrated.cnn.com/TENNIS/NEWS/20130530/FRENCH-OPEN-THURSDAY.AP/  Responser: It's her time now. Ranked 205 a few months ago and now in the top 50 with this win
