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 go out to the officers, and the innocent bystander who became victims of a vicious attack in Queens. Truly an instance of senseless violence.  Responser: Lived inthis part of Queens most of my life and never seen anything like this. More survillance needed in the area.
