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 Kelsi Haller of Teutopolis High School whose "Glimpse of the Past" will be displayed at the U.S. Capitol. I'm proud of all of the talented high school artists in the 15th District.  Responser: Yea Kelsi!!! Soooo proud of you and your beautiful art!
