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: 40th anniversary of the best sales pitch ever: National Lampoon's January 1973 cover.  Responser: Sorry Chevy, gotta say anything that uses suicide as entertainment is not funny in my book. Most everything else you post is though.
