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

In which US state would you find the cities of Chesapeake, Roanoke and Fredericksburg?
fredericksburg

What sport is featured in the musical The Beautiful Game by Andrew Lloyd Webber and Ben Elton?
the beautiful game

Which city is known as the 'Pearl of the Danube'?

danube