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.
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Question: Who wrote the play 'The Iceman Cometh'?

Answer: eugene o'neill


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

Answer: if and only if


Question: Which member of the Royal Family married Katherine Worsley?

Answer:
prince edward, duke of kent