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: Kurt Helin @basketballtalkCeltics’ Jaylen Brown, reportedly Spurs’ Jonathon Simmons invited to dunk contest , 5:39:15 PM Question: to what is jonathon simmons invited? Answer: a dunk contest.
[EX A]: yes

[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 guy did a faceswap with a @Harry_Styles pic so we'd get an idea of how our Hazza looks with a shaved head. Busy BBC Radio1 Breakfast (@R1Breakfast) May 9, 2016 Question: what was meant to be seen on harry styles? Answer: a shaved head
[EX A]:
yes