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: Our faces when you say you're not tuning into the new #thundermans tonight on @nickelodeontv #SmellsLikeTeamSpirit airs tonight at 8/7c!  Responser: Love those t-shirts!!
