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: Tax Day is here. I want you to know I'm a proud signer of the Taxpayer Protection Pledge. I will oppose any and all efforts to increase your income tax rates.  Responser: We are the people. We are America. Continue to fight for us. Vote Ken Calvert.
