Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Created by Alex Raymond, this futuristic character first appeared in 1934. Who is he?
alex raymond

The French wine growing areas of Macon, Beaujolais and Chablis are in which region?
macon

Which music hall performer was best known for his songs 'Boiled beef and carrots' and 'Any Old Iron'?

any old iron