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: Where are sister chromatids attached to one another?

A: common centromere
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Q: What role did anne jeffreys play on general hospital?

A: Amanda Barrington
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Q: Who played obi-wan kenobi in star wars episode 1 the phantom menace?

A:
Ewan Gordon McGregor
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