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: Senator Shaheen will be appearing on msnbc with Thomas Roberts today at 11:10 a.m. to discuss her ongoing efforts to fight the crisis of sexual assault in our military. Don't forget to tune in!  Responser: How about she talks about upholding the constitution
