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: This simple, powerful message is starting to resonate in races all over the country where GOP candidates have foolishly endorsed Trump. This is why Democrats are going to win seats, from Wisconsin to California, that pundits previously said were unwinnable.  Responser: I think we'll even get a few turncoats!
