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: Gave it my all tonight!!! Thank you for the amazing and much needed support! Sending my thoughts and get well wishes to Nigel. #AO2016  Responser: Nathan Monk has to win by default
