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

Ex Input:
Who won the 2011 Booker Prize for 'The Sense of an Ending'?

Ex Output:
the sense of an ending


Ex Input:
Where is Charles Darwin buried?

Ex Output:
charles darwin


Ex Input:
Which country on the West African coast lies between The Democratic Republic of the Congo and Namibia?

Ex Output:

democratic republic of the congo