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: Today's Women's March was an inspiration. I was proud to stand with hundreds of thousands of men and women of all races, ages, religions, backgrounds, and sexual orientations. You will be heard.  Responser: Sorry you missed marching with the thousands of your constituents who marched in southern Nevada
