Definition: In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.
Input: Context: Pharrell a vampire 2pashk (@pashklleshaj) February 17, 2014 Question: what mythical creature is used to describe pharrell? Answer: vampire

yes