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

Input: Consider Input: What currency is used on Christmas Island?

Output: christmas island


Input: Consider Input: Aaron Copeland wrote a ballet about which American folk hero?

Output: aaron copeland


Input: Consider Input: The book A Kestrel for a Knave by Barry Hines was the basis for which 1969 film?


Output: barry hines