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: Me: *travels 4,799 miles to see you* You: But why aren't you coming to my exact town?  Responser: Just wondering why you have 2 in the South of England but none in the North of England
