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: Great visit today to Interbake Foods' Front Royal Bakery. Enjoyed the tour and meeting folks working there this afternoon on my way back up to D.C. for votes.  Responser: Have you lost your mind!!!??? Obama has done nothing impeachable?? Exactly WHICH constitution have you been reading???
