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: @Rosenbergradio: It's official !!! @funkflex on Juan Epstein for the first time ever...LIVE IN BROOKLYN! October 7th!!!! More info coming soon  Responser: http://youtu.be/4sK5ABJyGoE [[VIDEO_SHARE_YOUTUBE]]
