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

Q: Who, as the first chairman of the British Rail Board, infamously directed the huge reduction in railway lines across the UK in the 1960s?

A: british railways board
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Q: In which British city would you find Barlinnie prison?

A: hm prison barlinnie
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Q: What is the main language spoken in Chile?

A:
chile
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