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: Tonight I will join Lou Dobbs on Fox Business at 7PM to discuss the latest on questions surrounding AG Holder's testimony about media surveillance before the House Judiciary Committee. Tune in!  Responser: What do you think about this, Congressman?
