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: Help us make sure we are celebrating on this stage in just 8 short days. #VoteforVal  Responser: I already voted for you and Hillary. My husband and I did absentee ballot and mailed them several weeks ago.
