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: Nobody can deny @realDonaldTrump uncovered a 14 year long 9/11 cover-up re: celebrations on Jersey City rooftops. Daniel Scavino Jr. (@DanScavino) December 2, 2015 Question: who uncovered a 14-year long 9/11 cover-up? Answer: donald trump

Ex Output:
yes

Ex Input:
Context: MY PICTURE OF PRINCES WILLIAM AND HARRY WITH THEIR FATHER THE PRINCE OF WALES. #FATHERANDSONDAY @KensingtonRoyal Mario Testino (@mariotestino) June 29, 2015 Question: what type of zone is someone in if you don't return their feelings? Answer: friend

Ex Output:
no

Ex Input:
Context: Josh Martin @JoshMartinNBAFWIW, Pacers last played on Wednesday, spent weekend in LA. Clippers, meanwhile, got back from 6-game road trip yesterday12/5/2016, 4:39:14 AM Question: what would oh no like kanyewest to do? Answer: stop

Ex Output:
no