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'm racing to get more people to "Like" my page this week. Tell your friends to help show how great we are here... http://t.co/YVpOub15  Responser: @kevin-e mail Joe and she will respond...gotta have filters when you're that busy! Keep trying.
