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: Can't sleep Too busy worrying about the controllers strike. Would prefer not to spend my holiday in the Airport. #airtrafficstrike— mafleen (@mafleen) June 25, 2014 Question: in what hospital is the msf team working? Answer: haradh hospital
[EX A]: no

[EX Q]: Context: Devin Booker with 21 straight points in the fourth quarter tonight🔥🔥🔥I’m telling you this kid is the next Kobe Hoop Central (@TheHoopCentral) January 17, 2018 Question: what did the man say to roxanne? Answer: she's attractive and not overweight
[EX A]: no

[EX Q]: Context: It takes immense courage to do what Zimbabweans have done today. Your fellow Africans stand with you ✊🏾 #ZimShutDown2016— Ndayi (@alainndayi) July 6, 2016 Question: what did zimbabweans do? Answer: zimshutdown2016
[EX A]:
yes