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]: In which Shakespeare play do the characters Ajax, Achilles and Ulysses appear?
[A]: achilles


[Q]: What is the main ingredient of the Indian dish dhal?
[A]:
dal