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: In the car, heading to the Town Hall I'm hosting. Join Me! 2:30pm/3460 N. Access Rd. Englewood, FL, 34224.  Responser: Great to hear some young people ready to partiscipate!
