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: Hope everyone had a happy international hangover day! 2017 = back to the mountains!! SunGod Planks Clothing Monster Energy Salomon Freeski BAWBAGS underwear : @tpyattphoto  Responser: Where is your helmet ?
