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: i had an awesome wknd! & now, what a Monday! amazing week ahead! 1word: #Dallas - @TheXFactorUSA hopefuls, you ready to #BringItAndSingIt?  Responser: YOU SHOULD COME TO THE IWIRELESS CENTER IN THE QUAD CITIES AND PERFORM!!
