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: I'm honored to have another thoughtful recommendation from a brilliant leader this time from Union Square Ventures's Fred Wilson. http://avc.com/2016/08/the-seventh-sense/  Responser: this is where I was exposed to your book and I am reading it. I am not sure I agree with you about the individual liberty piece.
