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: ICYMI, check out CBS2's coverage of Prime Minister Netanyahu's address.  Responser: http://forward.com/articles/216074/what-do-israelis-think-about-americans-start-with/?p=all#ixzz3ToMJvyEW
