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

Which play and film was adapted from a story by Christopher Isherwood and later adapted as the musical and film Cabaret?
cabaret

 'The Dream of Gerontius' is the 1900 work of which English composer?
the dream of gerontius

Whom did Sitting Bull defeat at the battle of Little Bighorn on June 26, 1876, along with his brothers Thomas and Boston?

battle of the little bighorn