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: On set with Jeremy LaLonde Jordan Walker & Aaron Adams shooting #thegogetters  Responser: amy, please have fun on the set of the movie :) & glad your in the movie as well
