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 Bond Girl Domino Petachi in Never Say Never Again?

Answer: never say never again


Question: What is the second largest of the Balearic Islands ?

Answer: balearic islands


Question: Who had a number one hit in 1974 called Billy Don't Be A Hero?

Answer:
billy don't be a hero