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: Pre-Wimbledon Party last night! Amazing rooftop gardens, fun photo booth, and loved getting all dressed up :)  Responser: You are going to be a great player. I will be watching your match on Saturday, June 29.
