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 this day in 1919, the American Legion was incorporated by Congress. Over 90 years later, they are still working hard for our nation's Veterans.  Responser: What are you doing about the thousands in FLs prisons with Outrageous sentences for Non violent drug charges? https://www.facebook.com/bringshanehome
