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

Ex Input:
Dora Maar au Chat and The Weeping Woman are both portraits by which artist of his lover?

Ex Output:
dora maar au chat


Ex Input:
Which cartoon character had friends called Velma Dinidey and Daphne Blake?

Ex Output:
daphne


Ex Input:
Grace Anna Goodhue was the wife of which US President?

Ex Output:

grace coolidge