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.hollywoodreporter.com/live-feed/historys-military-drama-six-renewed-season-2-979012  Responser: YAY!!!! THAT'S SOOOO GREAT TO HEAR!!! I CAN'T WAIT!!!!
