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

Ex Input:
Antanananarivo is the capitol of where?

Ex Output:
antananarivo


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

Ex Output:
chatham islands


Ex Input:
Which English king was the son of Edward, the Black Prince?

Ex Output:

edward, the black prince