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: Reminder: February 14th's shows in Boston's Wilbur Theatre have been moved to March 1st due to sever weather.  Responser: I hope all of you have had a Happy Valentine's Day! Stay warm. <3 :-)
