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: If you're not concerned about AI safety, you should be. Vastly more risk than North Korea. Elon Musk (@elonmusk) August 12, 2017 Question: how does he say he feels? Answer: "a little bit confused" about where they're headed

no