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

Ex Input:
Cilantro is the leaf of which herb?

Ex Output:
cilantro

Ex Input:
In the film 'Breakfast at Tiffanys', what is the name of Audrey Hepburn's character's cat ?

Ex Output:
breakfast at tiffany's

Ex Input:
In which book of the Christian Bible is the story of Lazarus being raised from the dead?

Ex Output:
bible