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: Qu opinas del mensaje del Papa Francisco sobre los homosexuales? http://www.lanacion.com.ar/1605663-otro-gesto-impactante-de-francisco-quien-soy-yo-para-juzgar-a-los-gays  Responser: No todos somos el papa
