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: On Tuesday I met with local business and civic leaders in Sandy, Oregon to discuss a wide range of issues. It's encouraging to see folks working together to address the challenges and opportunities facing this rapidly growing and vibrant community.  Responser: No more telling people to quit driving and ride bikes and take mass transit everywhere. Sorry Blumenauer your liberal Portland ideas will not fly with the rest of the nation.
