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

Ex Input:
Who painted The Card Players, at Feb 2012 the most expensive artwork in the world?

Ex Output:
the card players


Ex Input:
To which country do the Chatham Islands belong?

Ex Output:
chatham islands


Ex Input:
Which fictional character has been played by Albert Finney, Peter Ustinov and David Suchet?

Ex Output:

david suchet