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: "Success is not final, failure is not fatal: it is the courage to continue that counts." -Winston Churchill  Responser: It's not how many time you get knocked down...it's how many times you get back up..Jack Dempsy
