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: Get ready for an EPIC Showdown this week. Greenleaf's Robert 'Mac' McCready - The most hated man on television. Check out the FULL interview behind the scenes with Emmy Award Winner Gregory Alan Williams Greenleaf/OWN, Uncle Mac  Responser: Love your view on Bishop cutting dirty Mac down in the hospital... all I could think about was Dead Presidents!!!!
