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: Congratulations to Coach Mainieri & the LSU baseball team for winning regionals. Beat Oklahoma in the supers! Geaux Tigers!  Responser: Shame on ESPN!!! One of the most exciting games was on Saturday night against Sam Houston!!! Geaux Tigers!!!
