TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: What style of facial hair was famously worn by American Civil War general Ambrose Burnside?

SOLUTION: ambrose burnside

PROBLEM: The headquarters building of which government agency is known as 'The Doughnut' due to its shape?

SOLUTION: the doughnut

PROBLEM: Who was the author of 'Daniel Deronda' published in 1876?

SOLUTION:
daniel deronda