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

[EX Q]: What country has an official residence called Blair House, kept for guests of the leader of the country?
[EX A]: blair

[EX Q]: Which actress played Arwen in the trilogy of films?
[EX A]: arwen

[EX Q]: Dreams from my father, a story of race and heritance is about which politician?
[EX A]:
dreams from my father