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: Singed copy of Never Broken my new CD! http://www.indiegogo.com/projects/lines/x/933166  Responser: yup apparently jason david frank has stated that you turn your back on your fans. lies he stated
