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

Ex Input:
Who was the only child vampire in Anne Rice`s novels?

Ex Output:
anne rice


Ex Input:
Where is Charles Darwin buried?

Ex Output:
charles darwin


Ex Input:
Which company began a hostile takeover bid for Cadbury in September 2009?

Ex Output:

cadbury