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 am proud of the Washington legislature for taking this step toward equality for gay and lesbian families. I support this important effort and look forward to its passage.  Responser: Thank you so much for all the time you have spent working for equality!!! My family and I will forever be appreciative!!!!
