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: Check out the latest newsletter, which includes a special note from Dean! http://us1.campaign-archive1.com/?u=f0037568fb940eda6504b7c7d&id=f6faed5d36  Responser: Take care of Oddie! Love those story lines!
