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.

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
yes

Context: Prince didn't even perform tonight and he owned the Grammys. Mashable (@mashable) February 9, 2015 Question: how many refugees were stuck? Answer: 100s
no

Context: Supporters & protesters now throwing bottles & other objects at each other Jeremy Diamond (@JDiamond1) May 27, 2016 Question: what were the objects being thrown at Answer: protesters and supporters

yes