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: It's Throwback Thursday - go back and check out Dean's story for how Odd Thomas came to be! #DeanKoontz #tbt  Responser: Lavonne Yates..... Are you saying you've seen the movie already? If so, please tell us where to find it?
