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: "I am never bothered when my opponent hits a winner ~ They have just as much a right to hit a great shot as I do."- Chrissie on keeping positive & not being flustered by an opponent's momentum  Responser: Very sensible attitude!! She had great mental strength!!
