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

Example Input: Come Clean was the debut album by which 2000s band?
Example Output: come clean

Example Input: Barabas is the central character in what 16th century play?
Example Output: barabas

Example Input: Who was assassinated on the Ides of March?
Example Output:
assassination of julius caesar