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: One of my favorite roles, "Captain Max" in the episode THE FINAL FRONTIER on @abccastle will re-air Tuesday Night, 7pm, on TNT. Watch me channel my inner/drunker Captain Dax (@natefillion)  Responser: I saw this one. It was hard for me to get used to you not being Nathan stark. But once I did, I thought you were funny.
