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

[Q]: In which constellation is the star Deneb?
[A]: deneb


[Q]: Lexus is the luxury vehicle division of what car maker?
[A]: lexus


[Q]: Which European boyband released a 2000 album entitled 'Coast to Coast'?
[A]:
boy band