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 the Rose Bowl Champion Oregon Ducks. Thanks for a great game and a great season.  Responser: Two great representations of Oregon: The Ducks and Senator Wyden!!!!!!
