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

Input: Consider Input: Allopurinol is typically prescribed for which illness?

Output: allopurinol


Input: Consider Input: What is the only nation state of the Commonwealth of Nations on the mainland of South America?

Output: commonwealth of nations


Input: Consider Input: The Boxer Rebellion took place during 1900 in which country?


Output: boxer rebellion