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: VIDEO: Watch Dianne's appearance on @CNNsotu from over the weekend: http://ow.ly/aM270 #Afghanistan  Responser: I'm delighted that France elected a president who is going to stop playing the Afghanistan 'built a society in Our Image' game and leave early.
