In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify this question-answer pair into two categories: (1) "yes" if the given answer is right for question, and (2) "no" if the given answer is wrong for question.

[EX Q]: Context: Yellowstone River closed to ALL recreation in response to ongoing fish kill: Montana FWP (@MontanaFWP) August 19, 2016 Question: what river was closed? Answer: possibly, next weekend.
[EX A]: no

[EX Q]: Context: .@realDonaldTrump refuses to apologize to @ColumbaBush, @JebBush's wife #CNNDebate CNN Politics (@CNNPolitics) September 17, 2015 Question: who is @jebbushs' wife? Answer: masturbate
[EX A]: no

[EX Q]: Context: 20 years ago today we lost the greatest rapper of all time, The Notorious B.I.G. # Sean Diddy Combs (@diddy) March 9, 2017 Question: how many years ago did we lose the greatest rapper of all time? Answer: early morning
[EX A]:
no