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: Tammy led a press conference today to speak out against potential cuts to programs serving Veterans. See what she had said here: http://goo.gl/vFUyp  Responser: Tammy - thank you for your service and sacrifice.
