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

Ex Input:
What is the French name for the English Channel?

Ex Output:
channel


Ex Input:
'Bring It All Back' was the debut single for which group in 1999?

Ex Output:
bring it all back


Ex Input:
What is the official language of Chile?

Ex Output:

chile