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: Happy Friday from Dean and Anna!  Responser: Thank you sir for all of your good works. For nerdy gen-x'ers your writing was a great escape from the mundane. And the fact you featured and loved our Golden friends is just a nice bonus...Dogs...a friendly, furry enough reason to chill out here for 85 or so years.
