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

[EX Q]: Chris Martin is the lead singer with which band who had several hits in the 2000s?
[EX A]: chris martin

[EX Q]: Which country is currently ruled by the Chakri dynasty that has been in power since 1782?
[EX A]: chakri dynasty

[EX Q]: Who wrote 'Imajica', 'Coldheart Canyon' and 'Galilee'?
[EX A]:
coldheart canyon