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: Skiing is so much fun!! :D On a Tuesday in June, I'm missing the mountains aswell! Here's a clip from #Norway last month, I had a lot of fun on all the hits @openklasse @myrkdalen @ioncamera @monsterenergy @salomonfreeski  Responser: What do you guys do in the summer? Southern Hemisphere to train?
