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: History is made! #MontrealProtocol countries agree to curb powerful greenhouse gases in largest climate breakthrough since Paris. 🌍🌎🌏 UN Environment (@UNEP) October 15, 2016 Question: what did @montrealprotocol countries agree to? Answer: curb greenhouse gases
[A]: yes


[Q]: Context: Dear most of Hollywood, this is happening. You cannot sweep this under the rug. Support vocally or you will forever have an * in history. rose mcgowan (@rosemcgowan) October 10, 2017 Question: who is mcgowan speaking to? Answer: most of hollywood
[A]: yes


[Q]: Context: The Cavaliers have not been informed of LeBron James' decision and know nothing of a possible afternoon announcement, I'm told.— Sam Amick (@sam_amick) July 10, 2014 Question: who did not know of lebron james' decision? Answer: cavaliers
[A]:
yes