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: Chris King thinks the #Ferguson protest didn't cause the shooting, the shooter just used it as cover. An eyewitness says, the protest was peaceful and the energy was "fantastic" until then. #NewDay  Responser: How can you tell Protestors from the Shooters? You can't. So they should not be Protesting and giving Shooters cover.Did no one think of this? Ferguson is a hotbed for trouble #Ferguson is Shameful
