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 am in Iceland cooling my brains on some glaciers. Any Icelanders out there in readerland want to show me a local good time? I hate being a tourist.  Responser: There's a facebook page called Your Friend Iceland that has some interesting stuff to see and do. It's also a page that personifies Iceland, which sounds odd, but Iceland seems to have a cool personality. Please excuse the pun.
