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: i will say this only once:taylor swift is not in the slytherin house, she just has slytherin friends— yung sweet lassi (@andnowtothemoon) August 21, 2017 Question: how do they get sorted? Answer: the sorting hat, first day
[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: If Dippin Dots was truly the ice cream of the future they would not have run out of vanilla cc @Nationals— Sean Spicer (@seanspicer) September 7, 2015 Question: what company is supposed to be the ice cream of the future? Answer: dippin dots
[EX A]:
yes