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: I love my hometown Charleston and it's awesome to see the juniors doing so well! Keep working hard! http://www.postandcourier.com/sports/rogers-having-major-impact-on-local-junior-tennis/article_3c7a84c8-a393-11e6-b2bc-6b0c5c833bdb.html  Responser: #RoleModel - way to go Shelbs :-)
