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.

[EX Q]: Context: Nature does dams too. They are just sliiiightly smaller than the ones I saw upstream. #endangeredriver John D. Sutter (@jdsutter) June 23, 2014 Question: what situation is bahai in? Answer: in some kind of captivity.
[EX A]: no

[EX Q]: Context: We can't destroy the competitiveness of our factories in order to prepare for nonexistent global warming. China is thrilled with us!— Donald J. Trump (@realDonaldTrump) November 5, 2012 Question: who is thrilled with us? Answer: china
[EX A]: yes

[EX Q]: Context: 2 of the last living WW2 AVG #FlyingTigers Frank Losonsky (left) & Chuck Baisden reunite with a P-40E Warhawk for #AWW16 #avgeek #milav Thom Patterson (@thompatterson) September 22, 2016 Question: where can i read her article? Answer: n.y. times
[EX A]:
no