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

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

In which religion is there one god called Ahura Mazda?
ahura mazda

Which Apollo moon mission was the first to carry a lunar rover vehicle?

apollo program