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 Input:
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 Output:
yes


Ex Input:
Context: I'm going to fight my heart out to make sure @realDonaldTrump's toxic stew of hatred & insecurity never reaches the White House.— Elizabeth Warren (@elizabethforma) May 4, 2016 Question: why are karen and nick praying for friends and families? Answer: because of the victims of the nepal earthquake

Ex Output:
no


Ex Input:
Context: Is our Kitten Sweeet Friend going up or down the stairs? #UpOrDown #Sweeet McVitie's (@McVities) April 10, 2015 Question: what is the size of the asteroid? Answer: small

Ex Output:

no