Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Who played Bonnie in the 1967 film `Bonnie And Clyde`?

Answer: bonnie and clyde


Question: What name is given to the Fourth (4th) movement in Beethoven's / Ninth (9th) Symphony?

Answer: ludwig van beethoven


Question: What is the name of the mermaid played by Daryl Hannah in the 1984 film 'Splash'?

Answer:
splash