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

[EX Q]: Who was Prime Minister of Australia at the outbreak of World War I?
[EX A]: australia

[EX Q]: What was the first British credit card?
[EX A]: credit card

[EX Q]: Eric Faukner; Derek Longmuir and Les McKeown were members of which 70's pop group?
[EX A]:
derek longmuir