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

[Q]: Which Bob Dylan song begins You got a lotta nerveTo say you are my friend. When I was down, You just stood there grinning?
[A]: bob dylan


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


[Q]: John Gay's musical play, 'The Beggar's Opera' features a highwayman, who is known by which surname?
[A]:
the beggar's opera