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: What a win by the Flyers tonight! Bring on Montreal!  Responser: Tough loss for your guys Joseph but they put up a good fight! One of the best, hard-fought games in a long time. Thanks for your support James!
