instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which singer played Billie Holiday in the 1972 film 'Lady Sings The Blues'?
answer:
lady sings the blues

question:
Which Football League club play their home games at Kingsmeadow, also known as the Cherry Red Records Stadium?
answer:
kingsmeadow

question:
What character was played by Bill Cosby in his long running TV series?
answer:
bill cosby