instruction:
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.
question:
Context: Two Duchess of Cambridge images have joined @NPGLondon's #Vogue100 exhibition from today: VOGUE.CO.UK (@BritishVogue) May 1, 2016 Question: who joined vogue100 exhibition? Answer: two dutchess of cambridge
answer:
yes


question:
Context: both countries will, perhaps, work together to solve some of the many great and pressing problems and issues of the WORLD!— Donald J. Trump (@realDonaldTrump) January 7, 2017 Question: what is described as having great and pressing problems? Answer: the world
answer:
yes


question:
Context: MT @idfspokesperson: I just ousted Hamas as the mayor of Gaza on @foursquare!— Andrew Kaczynski (@BuzzFeedAndrew) November 15, 2012 Question: which app is was being used? Answer: nelson mandela
answer:

no