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: I'm back on Speed!!! My show 101 Cars You Must Drive is being rerun onSpeed Channel wednesday nights at 9. Check it out http://www.speedtv.com/programs/101-cars-you-must-drive/  Responser: Saw the Delorean episode last week. Nice gig.
