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

[EX Q]: Charon is a moon which orbits which body?
[EX A]: charon

[EX Q]: With which song did Swedish pop group Abba win the 1974 Eurovision Song Contest?
[EX A]: abba

[EX Q]: Which fictional jungle dwelling character was invented by Edgar Rice Burroughs?
[EX A]:
edgar rice burroughs