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

[EX Q]: Which 1981 film , directed by John Huston, starred footballers Bobby Moore, Pele and Osvaldo Ardiles?
[EX A]: osvaldo ardiles

[EX Q]: Aaron Copeland wrote a ballet about which American folk hero?
[EX A]: aaron copeland

[EX Q]: What orange spice/colouring comes from the crocus plant, often associated with rice?
[EX A]:
crocus