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: I hope you can join us at my town hall meeting in St. George next Tuesday, May 17th. The meeting will begin at 7:00 PM at the Washington County Commission Chambers located at 197 East Tabernacle.  Responser: This is great! Washington County has been waiting on this!
