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

Ex Input:
Which country is currently ruled by the Chakri dynasty that has been in power since 1782?

Ex Output:
chakri dynasty


Ex Input:
Who composed the opera 'Albert Herring' in 1947?

Ex Output:
albert herring


Ex Input:
What kind of fruit is a Comice?

Ex Output:

pyrus communis