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.

[Q]: Context: Environmental Racism + Indifference = Lead in the Water & Blood...The Poisoning of Flint's Water 0 #FlintWaterCrisis Cornell Brooks (@CornellWBrooks) January 24, 2016 Question: what city is mr. brooks talking about? Answer: flint, mi
[A]: yes

[Q]: Context: AP Top 25 @AP_Top25Swanigan leads No. 21 Purdue past Penn State 77-52 , 7:52:05 PM Question: purdue passed what team with a score of 77-52? Answer: penn state
[A]: yes

[Q]: Context: It is so nice that the shackles have been taken off me and I can now fight for America the way I want to. Donald J. Trump (@realDonaldTrump) October 11, 2016 Question: how did donald trump feel earlier? Answer: shackled
[A]:
yes