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: What are your plans for Memorial Day weekend?? My parents are coming into town...so excited to show them around this AMAZING city!  Responser: "Rest" is the key word for me.
