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: #bringbackourmarine #marineheldinmexico ICYMI: from #ptsdhearing - MAKE THE DAMN CALL TODAY.  Responser: Get him home!!! How are we able to have the man power and resources to treat Ebola but we can't get our Marine home and the treatment he needs??
