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: Available today only! You can download my #1 New York Times bestseller, #SettleForMore, for only $4.99 on Nook, iBooks, and Kindle: http://bit.ly/2hvuGds  Responser: Just watched Newt destroy you. Listening to you run your mouth I highly doubt you can articulate a book worth reading.
