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: TPP is bad for local business, products, and consumers. And it could cost us a great deal.  Responser: Enough of Harper tactics, lets be honest and allow transparency. We can change government again if required. Lets not go down that road again!
