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

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

Who succeeded Jon Pertwee as Doctor Who?
doctor who

Sean Kerly, Imran Sherwani and Ian Taylor were all members of Great Britain's gold-medal winning team in the 1988 Olympics in Seoul. In what sport?
1988 summer olympics