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: Standout for Steve! Wednesday, March 6 Holy Name Rotary West Roxbury 4:30 - 6:00pm  Responser: See you all there! Go #teamlynch
