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

Which band had a hit with the song 'Brown Girl in the Ring'?
brown girl in the ring

Basil Rathbone made 14 Sherlock Holmes films. Who played the part of Dr Watson?
watson

What is the title of the signature tune, composed by Arthur Wood, of Radio 4's programme 'The Archers'?

arthur wood