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

[Q]: Field Marshal Arthur Wellesley, shares his better known title with which Southern Hemisphere capital city?
[A]: arthur wellesley, 1st duke of wellington


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


[Q]: Rod Blagojevich was alleged to have solicited personal benefit in exchange for an appointment to the US Senate after Barack Obama resigned because he had been elected President of the USA. He was the Governor of which US state?
[A]:
barack obama