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: Challenge over! Orange team has reactivated the power and sent the power turning! #rtncyberf2f CyberSecChallengeUK (@Cyberchallenge) February 21, 2015 Question: what challenge happened recently? Answer: cyber challenge uk

yes