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

Example Input: Which evolutionary biologist wrote The Ancestor's Tale in 2004?
Example Output: the ancestor's tale

Example Input: Which entertainer uses various names, including Puff Daddy, P. Diddy and Diddy?
Example Output: p. diddy

Example Input: Prince Albert, husband of British monarch Queen Victoria, was born in which modern-day country?
Example Output:
albert