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: Breaking News: President Donald J. Trump announces Gen. H. R. McMaster will take over the role of national security adviser after Gen. Michael Flynn resigned.  Responser: Now just cut Bannon out and you will be my hero
