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://www.wtatennis.com/news/20120920/lepchenko-advances-seoul-quarterfinals-set_2256076_2924208  Responser: Awesome! Keep it going!

Positive