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: Actually, that's just what taking the office of President seriously looks like. Hillary Clinton (@HillaryClinton) September 8, 2016 Question: what website is linked in this? Answer: twitter
[EX A]: yes

[EX Q]: Context: Hillary Clinton has stolen our innovative WikiLeaks twitter logo design. Compare: @WikiLeaks vs @HillaryClinton WikiLeaks (@wikileaks) April 12, 2015 Question: what did @montrealprotocol countries agree to? Answer: curb greenhouse gases
[EX A]: no

[EX Q]: Context: I would much rather have Donald Trump talking to President Tsai than to Cuba's Raul Castro or Iran's Hasan Rouhani. This is an improvement.— Ted Cruz (@tedcruz) December 3, 2016 Question: who does ted cruz want donald trump to talk to? Answer: president tsai
[EX A]:
yes