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: My next race will be Friday, May 25th, in Ostrava (Czech Republic). I'll keep you guys posted on whether or not there will be a live broadcast of the meet online. Have a good one.  Responser: All the way from Baltimore, Maryland---KNOCK 'EM DEAD B! <3
