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

In which Indian city is Eden Gardens, the second largest test cricket ground in the world?
eden gardens

Which film actor (1895-1926) is known for his films The Four Horsemen, The Sheik and Blood And Sand?
blood and sand

Augusto Pinochet was the ruler of which country?

augusto pinochet