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: Thank you! RT @trutriciahelfer: @kateesackhoff Yup the scream was quite girly! Had me giggling a (cont) http://t.co/9ek18zmOvl  Responser: such antics beg for a Vine illustrating said giggling inducing girly scream
