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 am incredibly saddened to hear about the death of Muhammad Ali. He was a fighter. He was a champion. He was an inspiration. RIP, #GOAT.  Responser: Muhammad Ali was truly the "greatest of all times." I feel confident he is in a better place for all of the contributions he made to society both inside and outside of the ring. I miss you champ!
