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: There are so many reasons for young people to vote. Protecting the Pell Grant, education funding and passing the American Jobs Act to name a few. To the young and first time voters in Las Vegas, I encourage you to prove this article wrong. http://t.co/gE06zel9 #RegisterToVote  Responser: Perhaps the youth are getting smarter and are waking up to Obama?
