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: This election is so incredibly important. Here's an easy link to verify if you're registered: https://www.headcount.org/verify-voter-registration/  Responser: I'm registered and I am voting
