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

[Q]: Which film director won the Oscar for Best Picture for the film 12 Years a Slave in 2013?
[A]: 12 years a slave


[Q]: Which major river has its source at the confluence of the rivers Brigach and Breg in the Black Forest?
[A]: breg


[Q]: The Brooklyn Bridge crosses which river?
[A]:
brooklyn bridge