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: For anybody who's still mad about it: an explanation.  Responser: I found your fictional dialogue very entertaining, and I've often thought that laughing at monstrosities makes them a whole lot smaller and less dangerous.
