Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Q: Name Alfred Hitchcock's first sound film as director?

A: alfred hitchcock
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Q: The Greeks called her Athena, what was the Roman name for this Goddess?

A: athena
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Q: 'On Stranger Tides' and 'Dead Man's Chest' are subtitles of which series of films?

A:
pirates of the caribbean: dead man's chest
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