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 this day, we remember one of the greatest Americans, Dr. Martin Luther King, Jr.  Responser: If you are truly a supporter of MLK, then vote no for DEVOS. She will not help the students of color as she does not understand the policies that affect them.
