Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
--------
Question: Laurence Olivier directed and starred in a 1944 film, which began in the Globe Theatre and then gradually shifted to a realistic evocation of the Battle of Agincourt, which was adapted from which one of Shakespeare's plays?

Answer: battle of agincourt


Question: Which Beatle played Youngman Grand in The Magic Christian 1969, with Peter Sellers?

Answer: the beatles


Question: Ballabriggs won the 2011 Grand National. Who was his jockey?

Answer:
ballabriggs