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: My thoughts and prayers are with the victims and their loved ones in Charleston. Our hearts ache today and every time gun violence claims an innocent life.  Responser: What about the Meds??? Oh, pharmaceutical companies give you campaign money... So don't mention the medication he was on, only the guns....
