In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify this question-answer pair into two categories: (1) "yes" if the given answer is right for question, and (2) "no" if the given answer is wrong for question.

[EX Q]: Context: Detroiter walks 21 miles in work commute Detroit Free Press (@freep) February 1, 2015 Question: how many miles did the detroiter walk Answer: 21 miles
[EX A]: yes

[EX Q]: Context: @spacegovuk @esa @Space_Station a brief viewing tonight. My daughter waving at the ISS shouting "Santa" Merry Christmas to the ISS crew.— David Downie (@dgdownie) December 24, 2015 Question: what did david downie's daughter shout? Answer: and armed man
[EX A]: no

[EX Q]: Context: To support @scrippsresearch's work in finding a cure for #Ebola, donate here: c — OutFrontCNN (@OutFrontCNN) October 20, 2014 Question: @outfrontcnn is asking for what type of support for @scrippsresearch's word? Answer: boots
[EX A]:
no