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

[EX Q]: Eden Park staged some of the 2011 Rugby World Cup matches, in which city can it be found?
[EX A]: eden park

[EX Q]: Pirate Edward Teach was better known by what nickname?
[EX A]: edward teach

[EX Q]: What is the river Ganga called in Bangladesh?
[EX A]:
bangladesh