Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Which evolutionary biologist wrote The Ancestor's Tale in 2004?

Answer: the ancestor's tale


Question: Laurence Olivier directed and starred in a 1944 film, which began in the Globe Theatre and then gradually shifted to a realistic evocation of the Battle of Agincourt, which was adapted from which one of Shakespeare's plays?

Answer: battle of agincourt


Question: Which 2001 film starring Joseph Fiennes and Ed Harris is about two opposing snipers facing each other during the Battle of Stalingrad?

Answer:
ed harris