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: Keep up the VOTING!!! Only two weeks left to cast your votes for me! Thankssssss!  Responser: I voted! Saw you at Wimbledon....couldn't vote for anyone else!
