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

Ex Input:
In America, as what was Bill Shoemaker famous?

Ex Output:
bill shoemaker


Ex Input:
Which brothers own the Daily Telegraph?

Ex Output:
the daily telegraph


Ex Input:
The bacterium Bordetella pertussis is the causative agent for which childhood disease?

Ex Output:

bordetella pertussis