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: Encontr a la #MonaLisa #Louvre #Paris #Arte #museoo / Came to visit the Mona Lisa @MuseeLouvre http://www.whosay.com/l/yPM9JuJ  Responser: Paris paris!! Pero me gusto mas london y suiza!! [[PHOTO]]
