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: .@HillaryClinton I think it's high time for a woman president. You will get my vote.— Ron Carlivati (@carlivatiron) April 12, 2015 Question: what kind of president did the message call for? Answer: a woman president

Ex Output:
yes


Ex Input:
Context: Just another night in the desert @justinbieber #beliebit Caroline Wozniacki (@CaroWozniacki) March 11, 2015 Question: what does she have in desert? Answer: another night

Ex Output:
yes


Ex Input:
Context: Just beat a robot at beer pong. #CES2015 #onlyinVegas Ryan Owens (@RPOwens) January 7, 2015 Question: who is coach harbaugh proud of, no matter what? Answer: chris kyle

Ex Output:

no