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: Just beat a robot at beer pong. #CES2015 #onlyinVegas Ryan Owens (@RPOwens) January 7, 2015 Question: where did ryan owens beat a robot at beer pong? Answer: las vegas
[EX A]: yes

[EX Q]: Context: Katy Perry's Halftime in a nutshell Travis Lattner (@TLatt7) February 2, 2015 Question: what is this twitter page currently discussing Answer: katy perry's halftime show
[EX A]: yes

[EX Q]: Context: 5 years in 5 seconds. Darren Booth (@darbooth) January 25, 2013 Question: what connection does murdoch have to the people who committed crimes? Answer: his religion
[EX A]:
no