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 had the honor to speak at a celebration of the 50th anniversary of the March on Washington for Jobs and Freedom outside the State Capitol in St. Paul.  Responser: thank you Rep. Ellison, you are doing good work for Minnesota.
