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

[Q]: Who composed 'Belshazzar's Feast' cantata?
[A]: belshazzar's feast

[Q]: Ageusia is the loss of which sense?
[A]: ageusia

[Q]: Which actor appeared in 'The Paradise Club' and 'Eastenders'?
[A]:
eastenders