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.

[Q]: Context: Fabrizio is receiving treatment after being struck on the head by a ball on the 16th hole. Glad to say he is ok though and we wish him well— The European Tour (@EuropeanTour) September 11, 2014 Question: who is receiving treatment? Answer: fabrizio
[A]: yes


[Q]: Context: #Mpeketoni attack has been attributed to Al Shabaab. Military surveillance planes are currently airborne to help police operations.— Disaster Operations (@NDOCKenya) June 15, 2014 Question: what is being done to help police operations/ Answer: military surveillance planes
[A]: yes


[Q]: Context: Niagra Falls has frozen over. Next: Hell. Cheese Alone (@cheesenomad) February 18, 2015 Question: what has become of niagra falls? Answer: it became frozen
[A]:
yes