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: Here is a candid iPhone shot just 'hanging around' on the Muscle & Fitness Magazine Shoot... Thanks to GASP for the awesome kit!!!  Responser: Ryan Ginsberg- FACT!!! 6 and a half hours of it to be precise...
