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: Fondly remembering all of the wonderful conversations I had with my friend Ned McWherter. He will be missed.  Responser: I'm sure Algore was glad to see you again after that questioning you gave him! LOVED IT!
