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

[Q]: What is the official language of the Dominican Republic?
[A]: dominican republic


[Q]: 'Edward Lewis' and 'Vivian Ward' were the principal characters in which popular 1990 film?
[A]: edward lewis


[Q]: What is the capital of the American state of Arizona?
[A]:
arizona