Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.

Q: What word is used in mathematics to mean if and only if?

A: if and only if
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Q: What is between Malaysia and Singapore?

A: straits of johor
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Q: 'Prince Caspian', 'The Magician's Nephew' and 'The Silver Chair' are all books from which series?

A:
the chronicles of narnia
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