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.

[Q]: Context: @_mariareza @mizraimbelman no selfie The secret service was watching our every move— Juan Belman (@juanbelman) July 11, 2014 Question: who was watching juan belman? Answer: secret service
[A]: yes


[Q]: Context: #Aleppo : As Russia abuses its veto at the #UNSC - we must work to hold to account those participating in potential war crimes. Tobias Ellwood MP (@Tobias_Ellwood) December 14, 2016 Question: where are war crimes suspected to have taken place? Answer: aleppo
[A]: yes


[Q]: Context: . @championsleague These are Barça's 8 possible opponents in the quarter-finals. Which do you prefer? #UCLDraw #UCL FC Barcelona (@FCBarcelona) March 18, 2015 Question: how many possible opponents were there? Answer: a kangaroo
[A]:
no