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

[Q]: Who played Lionel Hardcastle in the TV series 'As Time Goes By'?
[A]: as time goes by


[Q]: Who hosted Call My Bluff?
[A]: call my bluff


[Q]: Which group`s last top ten hit single was called `All Hooked Up` before they announced a split in 2001?
[A]:
all hooked up