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'll be in Pomeroy tomorrow for my town hall at 11 a.m. at Pioneer Plaza. Please come join me if you're in the area!  Responser: Wish I could make it! I'll see you at the fair though! Thank you for all your hard work!
