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: A last minute reminder to job seekers: our jobs fair is TODAY from 1:00 - 6:00 pm at the Red Lion Hotel at the Quay in Vancouver.  Responser: Wish I knew about this before now. I would have went!!!
