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: When did royal mail and post office split?

A: 1 April 2012
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Q: Who sings the theme song from phineas and ferb?

A: Bowling for Soup
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Q: Who played denny duquette in grey's anatomy?

A:
Jeffrey Dean Morgan
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