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

[EX Q]: What is the cathedral church of Rome?
[EX A]: cathedral

[EX Q]: On which island is Nassau, the capital of the Bahamas?
[EX A]: nassau

[EX Q]: Which instrument was played by jazz artist Benny Goodman?
[EX A]:
benny goodman