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

[Q]: Chris Martin is the lead vocalist and rhythm guitarist with which group?
[A]: chris martin


[Q]: Which country music star, writer of the song Your Cheatin' Heart, died on New Year's Day 1953?
[A]: country music


[Q]: Who wrote the book 'Dubliners', first published in 1914?
[A]:
dubliners