TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Which singer played Billie Holiday in the 1972 film `Lady Sings The Blues`?

SOLUTION: lady sings the blues

PROBLEM: Eddie Jones was appointed head coach of which English sporting team in 2015?

SOLUTION: eddie jones

PROBLEM: Published in 1952, who was the subject of the book Diary of a Young Girl?

SOLUTION:
the diary of a young girl