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: If you are Volvo Car Open, it's a MUST to stop by and check out Hermosa Jewelry so many great handmade pieces!!!  Responser: Thanks for being super nice to fans after your Miami Open victory with Lucie Safarova!
