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: YOU can be a fierce force of innovation in the world!  Responser: This poem was read to me and the people who were in training with me when I was hired at JCPenney :). TO THE CRAZY ONES!
