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: The only question that matters in the GOP nomination fight right now: Can Trump be stopped? My latest.  Responser: Mark, Trump, is trying to get a book deal.. This isn't smart Mark, he is "dangerous smart". Is money so important to you Mark?
