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: Beautiful sunset pre-wedding shoot with the amazing ladies of Studio Two Wedding Photography. Can't wait to marry this guy on Saturday. #TheLoveStoryOfTG  Responser: Enjoy yourselves, congratulations!
