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: Just saw a penny cut in half by a pair of scissors...on steroids! Holy hell...I can honestly say I've never seen that before. #Cutco  Responser: Defacing the currency is a federal offence enforceable by the Secret Service.
