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

[Q]: Princess Estelle, Duchess of Ostergotland, granddaughter to King Carl XVI Gustaf, became 2nd in line to what nation's throne when born in 2012?
[A]: carl xvi gustaf of sweden


[Q]: What was the name of the 1963 Disney live action movie, where 3 animals ventured to get themselves home?
[A]: walt disney pictures


[Q]: Who wrote the 1973 Booker Prize winning novel 'The Siege of Krishnapur'?
[A]:
the siege of krishnapur