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 type of creature is an argali?

SOLUTION: argali

PROBLEM: Which country mainly makes up the Horn of Africa?

SOLUTION: africa

PROBLEM: Nemorino sings the aria Una Furtiva Lagrima in which opera by Donizetti?

SOLUTION:
nemorino