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: On my way to the Daily grind in Marshfield for a coffee with your congressman  Responser: I love that you do this- I wish more Representatives reached out to their people like you do.
