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

[Q]: In 2011, Christian Bale won a Best Supporting Actor Oscar for his role as an assistant to his half-brother in which boxing related film?
[A]: christian bale


[Q]: Which Afro American super model, TV personality and singer hosts the TV show, America's Next Top Model and also has her own daytime TV chat show?
[A]: america's next top model


[Q]: Which film that won an Oscar for Best Picture, explores prejudice against Jews and Afro-Americans over the period 1948 to 1973?
[A]:
academy award for best picture