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: Got a chance to be on Chicago Tonight It was my very first time and I'm not gonna lie to you I was a little nervous. :) But it worked out. Fun to spend a half hour talking news! Thanks for having me. It airs tonight at 7pm on WTTW.  Responser: Your dimples make me happy.
