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: Today we honor Martin Luther King and rededicate ourselves to all he stood for mia farrow (@MiaFarrow) January 20, 2014 Question: what d o we rededicate ourselves to? Answer: all he stood for
[EX A]: yes

[EX Q]: Context: #Mpeketoni attack has been attributed to Al Shabaab. Military surveillance planes are currently airborne to help police operations.— Disaster Operations (@NDOCKenya) June 15, 2014 Question: what is being done to help police operations/ Answer: military surveillance planes
[EX A]: yes

[EX Q]: Context: Obama tells an Army veteran's widow: The VA has been "overwhelmed," and it is "inexcusable" CNN Politics (@CNNPolitics) September 29, 2016 Question: who does obama tell this to? Answer: army veteran's widow?
[EX A]:
yes