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: Finally, you can attend one of my events without putting pants on! It's a live stream, folks. Tweet questions for me with #JetCityLive http://www.jetcitycomicshow.com/programming/live-stream-qa/  Responser: They bumped me to 3:00!
