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

Ex Input:
Who directed the 1988 film 'Beetle Juice'?

Ex Output:
beetlejuice


Ex Input:
To which country do the Chatham Islands belong?

Ex Output:
chatham islands


Ex Input:
Of which Caribbean country is Castries the capital?

Ex Output:

castries


