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: A documentary shines a light on appalling prison conditions in Turkmenistan. George Soros (@georgesoros) May 15, 2015 Question: what was special about bb king? Answer: he changed music forever.

no