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: Just got home from Barron County LDD. Great night. Off to bed...  Responser: Great meeting you both too, Jeff. It was impressive turnout. I told Rachel about you guys and she insists that you take your wife on a vacation to Ashland in early April.
