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

[EX Q]: Aragon and Castile joined to form which country?
[EX A]: aragon

[EX Q]: Who was Prime Minister of Australia at the outbreak of World War I?
[EX A]: australia

[EX Q]: November 30 is a time to celebrate the birthday of what TV personality, known as The World's Oldest Teenager, who hosted American Bandstand and still does the New Year's Rockin' Eve broadcast every December 31st?
[EX A]:
american bandstand