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 are Proxima Centauri, Sirius A, Pollux, Arcturus and Betelgeuse?

SOLUTION: arcturus

PROBLEM: Which musical has the songs 'Another Suitcase In Another Hall' and 'Oh What A Circus'?

SOLUTION: another suitcase in another hall

PROBLEM: Which was Disney's second animated film?

SOLUTION:
the walt disney company