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

[EX Q]: In which US state are the Catskill Mountains?
[EX A]: catskill mountains

[EX Q]: Which hero of science fiction was created by Alex Raymond?
[EX A]: alex raymond

[EX Q]: Elaine Page had a top ten hit in 1981 with which song from the musical 'Cats'?
[EX A]:
cats