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

[Q]: Which singer played Billie Holiday in the 1972 film `Lady Sings The Blues`?
[A]: lady sings the blues


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


[Q]: Who played the title role in the 1992 film My Cousin Vinnie?
[A]:
my cousin vinny