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: At 1:21 before launch, a thrust vector control actuator for the Falcon 9's 2nd stage failed to perform as expected. @SpaceX is evaluating.— NASA (@NASA) January 6, 2015 Question: what happened to the thrust vector control Answer: it failed
answer:
yes


question:
Context: The clock remains at 3 minutes to midnight - Rachel Bronson, Executive Director and Publisher of the Bulletin. BulletinOfTheAtomic (@BulletinAtomic) January 26, 2016 Question: who is rachel bronson? Answer: executive director and publisher of the bulletin
answer:
yes


question:
Context: they were extraordinary together #GreysAnatomy ☪ (@harryfairies) April 24, 2015 Question: how harryfairies feeling about greysanatomy? Answer: he is like they are extraordinary together.
answer:

yes