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.

Example Input: Context: In India getting ready to sail with Nashwa tomorrow from Mumbai to Muscat. Have had amazing help from our driver. Hilary Lister (@HilaryLister) March 10, 2014 Question: who is the subject of her tweet? Answer: nelson mandela dying.
Example Output: no

Example Input: Context: I agree with @realDonaldTrump, his Attorney General should not have recused himself over reported incidental contacts with Russian officials— Senator Rand Paul (@RandPaul) July 20, 2017 Question: what radio talent seems to have upset james rogala? Answer: brian williams
Example Output: no

Example Input: Context: Kurt Helin @basketballtalkIf I'm the Blazers I'd have lived with that deep, contested three, credit Covington for nailing it.1/21/2017, 2:29:21 AM Question: what sound is playing? Answer: all i want for christmas
Example Output:
no