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

Input: Consider Input: The headquarters building of which government agency is known as 'The Doughnut' due to its shape?

Output: the doughnut


Input: Consider Input: Brenda Mae Tarpley achieved fame under what name?

Output: brenda mae tarpley


Input: Consider Input: Which British prime minister resigned as a result of the Suez Crisis?


Output: prime minister of the united kingdom