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: The Free #Trade Agreements would increase US Exports by +$13 Billion & add +$10B to US GDP per year. Great news for job creators in #MI02!  Responser: What would their net effect on jobs be?
