TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Created by Alex Raymond, this futuristic character first appeared in 1934. Who is he?

SOLUTION: alex raymond

PROBLEM: What is the only nation state of the Commonwealth of Nations on the mainland of South America?

SOLUTION: commonwealth of nations

PROBLEM: Which 'Oscar'-nominated actress is the mother of Carrie Fisher?

SOLUTION:
carrie fisher