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

Answer: christian bale


Question: Which 1981 film , directed by John Huston, starred footballers Bobby Moore, Pele and Osvaldo Ardiles?

Answer: osvaldo ardiles


Question: What is Brazil's most widely-spoken language?

Answer:
brazil