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: Maria fights to extend Washington sales tax deduction for fed income taxes, so Washingtonians are treated fairly at tax time. http://ow.ly/7PqwU  Responser: Just....Thanks. I don't need it yet, but I will someday in the not too distant future. Just....Thanks!
