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: Looking to take away one of Nancy Pelosi's reliable votes? Sign up to volunteer as we enter the final days of the campaign.  Responser: Im sick as a dog, but still out there volunteering. I'll get better eventually, but the nation will only get better once will vote Debbie out!!
