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: Well I made it across beautiful Kansas today. Flat and featureless with cheap gas and 75 mph speed limit. Still not sure if that's good or bad  Responser: Drove across the state a few years ago and the grasshoppers were huge! I was happy not be on a bike that trip.
