TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Which King was born at Dunfermline Palace in November 1600?

SOLUTION: dunfermline palace

PROBLEM: Which major river has its source at the confluence of the rivers Brigach and Breg in the Black Forest?

SOLUTION: breg

PROBLEM: In which war was the Battle of Antietam fought?

SOLUTION:
battle of antietam