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

[EX Q]: The towns od Grimsby and Cleethorpes are in which English county?
[EX A]: grimsby

[EX Q]: After Harold McMillan who was Britain's next Prime Minister?
[EX A]: britain

[EX Q]: Which Shakespearean play features a merchant named 'Balthazar' and a Goldsmith named 'Angelo'?
[EX A]:
angelo