TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Besides the Caucasus, what mountain range forms the border of Europe and Asia?

SOLUTION: asia

PROBLEM: Dreams from my father, a story of race and heritance is about which politician?

SOLUTION: dreams from my father

PROBLEM: In what war was the Battle of Blenheim fought?

SOLUTION:
battle of blenheim