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: Thanks again for awesome feedback on my #skiing @DewTour - I didn't perform my best at all, but it only fuels the fire for the next event! :D Wicked from @kjellellefson @freeskiermagazine @MonsterEnergy @ioncamera #AFPWorldTour  Responser: every event is important, you need to stay more focused, and forget about social media
