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

Example Input: Denzil Washington played which black militant leader in the 1992 film of the same name?
Example Output: denzel washington

Example Input: The headquarters building of which government agency is known as 'The Doughnut' due to its shape?
Example Output: the doughnut

Example Input: Who was the director of the CIA from 1976-81?
Example Output:
central intelligence agency