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: What it means when I say I have "started writing" the sequel. (Warning: a writer talking about his process) http://burningbuilding.blogspot.com/2013/06/mind-writing-and-burying-lead.html  Responser: Rex Stout wrote this way, as well.
