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: Want to join the team? If you're interested in volunteering at the headquarters, please send your resume to mark@marksanford.com and we'll be sure and get back to you.  Responser: yessssssssssssssssssssssssssss!!!!!!!You have my vote!!!!
