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've written all about that debate question from August 2015 in my new book, #SettleForMore. It hits bookshelves November 15!  Responser: https://www.facebook.com/trumpmadeintheusa/videos/755008974640513/
