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

[Q]: Which TV screenwriter created the science fiction shows, Survivors and Blake's Seven?
[A]: blake's 7


[Q]: The bells were ringing for Chuck Berry when this song made it to No1. His first and only British No. 1. What song?
[A]: chuck berry


[Q]: Who was the last person to leave the house in the first UK television show of Celebrity Big Brother in 2001?
[A]:
celebrity big brother