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: I am heartbroken at the tragedy in Connecticut. My thoughts and prayers go out to the entire community and especially the families and friends of those who were brutally murdered today.  Responser: It is a sad day but dont wait untll itis forgotten or another mass shooting takes place. Start working on the problems that allow these shootings to take place
