In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Q: Who is the best selling novelist of all time?

A: Dame Agatha Mary Clarissa Christie, Lady Mallowan, DBE
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Q: Who was the winner of americas got talent 2016?

A: Grace VanderWaal
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Q: Who won wimbledon's men's singles in 1980?

A:
Björn Borg
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