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: With less than 24 hours until the primary, please join me in South Los Angeles for a rally to get out the vote with Hillary Clinton!! https://www.hillaryclinton.com/events/view/2CCQNTCTTBVHXTBG  Responser: Please please consider throwing your support behind senator Bernie Sanders tomorrow!
