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

[EX Q]: Mar Chiquita (Cordoba) is the largest natural salt lake in which South American country?
[EX A]: mar chiquita lake

[EX Q]: Which cyclist won the first medal for Team GB at the 2012 Olympic Games?
[EX A]: gb

[EX Q]: Which boxer was nicknamed the Orchid Man?
[EX A]:
boxing