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: You look too comfortable @mirzasaniar #happyhips #springchicken  Responser: Bethanie will be n1 Wta doubles ranking next week :)
