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

[Q]: What country has an official residence called Blair House, kept for guests of the leader of the country?
[A]: blair


[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


[Q]: Which ancient philosopher's works are collected in 'The Analects'?
[A]:
analects