instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Who directed the 1988 film 'Beetle Juice'?
answer:
beetlejuice


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


question:
David Clayton Thomas was the lead singer with which 1960's formed rock band?
answer:

david clayton-thomas