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

Ex Input:
In which country did the dance The Czardas originate?

Ex Output:
csardas


Ex Input:
Bound for Glory is the 1943 autobiography of which singer-songwriter?

Ex Output:
bound for glory


Ex Input:
'Edward Lewis' and 'Vivian Ward' were the principal characters in which popular 1990 film?

Ex Output:

edward lewis