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:
Which of these was the title of Bobby Darin's first million selling single?

Ex Output:
bobby darin


Ex Input:
On the western Christian calendar, what date is Twelfth Day?

Ex Output:

gregorian calendar