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: WGN NEWS @ 5: Cleveland bomb plot and link to Chicago. ALSO...Obama's surprise visit to Afghanistan. PLUS...Santorum and Romney to meet. AND...What do you think about a sugary drink tax?  Responser: I think there should be 1 day of nothing but good news!! Is that even possible???
