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: Diamond League meet at Crystal Palace, in London, today. Check UniversalSports.com for live broadcast. I run today & tomorrow so hopefully you will catch it! <3  Responser: I'll be sure to tune in. Good luck!
