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: My sock monkeys found a buddy on set today! A vintage grandma made buddy! #Longmire http://t.co/WsYTLXpgvG  Responser: Damn lucky Stock Monkey!
