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: Good news, #Grimmsters! Grimm will be back in its 9pm slot when Season 5 premieres in the fall! http://deadline.com/2015/05/nbc-fall-schedule-2015-upfronts-new-shows-blindspot-heroes-reborn-1201423940/  Responser: Grimmm....Jus Love It....Evil Juliette Jus rocks....
