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

[EX Q]: Who wrote the novel 'Brideshead Revisited'?
[EX A]: brideshead revisited

[EX Q]: With what country are corgi dogs associated?
[EX A]: pembroke welsh corgi

[EX Q]: David Mamet's plays American Buffalo (1975) and Glengarry Glen Ross (1982) are set in what city?
[EX A]:
david mamet