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: "Cheese dust is not food" says @MichelleObama. We concur. #EatRealFood Slow Food USA (@SlowFoodUSA) February 9, 2015 Question: what will tony fernandes do Answer: what ever he can
[EX A]: no

[EX Q]: Context: This dark and gritty '#PowerRangers' short film is surprisingly awesome - #NSFW - Geek Republic (@GeekRep) February 25, 2015 Question: what is surprisingly awesome? Answer: short film power rangers
[EX A]: yes

[EX Q]: Context: The media at the school that lost 16 pupils n 2 teachers in #GermanWingsCrash. Cold n rain matches the mood @CNN Paul Devitt (@cameramanCNN) March 25, 2015 Question: how many pupils died in the german wings crash Answer: 16
[EX A]:
yes