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: .@JohnLegend got Stevie Wonder to perform with him. Because of course. Full episode: #LipSyncBattle (@SpikeLSB) September 12, 2016 Question: what did stevie wonder do with john legend? Answer: performed with him on lip sync battle.
[EX A]: yes

[EX Q]: Context: Captain Patrick Sondenheimer, the man who tried to save #flight9525, a true hero, is the name I'll remember. #GermanWings #RIP— Verena King (@verenaking) March 28, 2015 Question: what is the name of the man who tried to save the german wings flight? Answer: patrick sondenheimer
[EX A]: yes

[EX Q]: Context: #PoliceBrutality: Pasco shooting: police will not say how many bullets fired at unarmed man #racism— Linda Hemby (@LindaHemby) February 20, 2015 Question: was the person the police fired at armed or unarmed? Answer: the suspect was unarmed.
[EX A]:
yes