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: Congratulations to the Verizon employees who went back to work today. I was happy to play a role, however small, in helping bring both parties to the table to reach a resolution.  Responser: Doing good Sir, keep listening and we will keep on voting for you!
