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: Teaming up with Lou Dobbs tonight at 7:20 on Fox Business to talk about today's Oversight hearing on the IG report regarding Fast and Furious.  Responser: Nice to see someone actually working in Washington. Thanks for your hard work with Fast and Furious
