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: Oops, Bradlee! Can hear Ben yelling now, "You White House clowns never get it right!" What a wonderful man. David Gergen (@David_Gergen) October 22, 2014 Question: who is yelling now? Answer: ben
[EX A]: yes

[EX Q]: Context: Star Wars: The Force Awakens has completed principal photography. #StarWarsVII #TheForceAwakens Star Wars (@starwars) November 6, 2014 Question: who explains what figured in clock move? Answer: science and security board
[EX A]: no

[EX Q]: 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 A]:
no