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: Got my first win back at the U.S. Open Championships yesterday. Such a great feeling and thank you to all the fans who helped support and cheer me on. You were awesome!  Responser: Good job Vicky, God bless u.
