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: http://www.ottawaradio.net/pages/14867890.php?  Responser: Reaching young voters will require getting the message across that raising taxes on people who earn over 250k a year negatively effects the economy.
