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

What book was written by Alexandre Dumas about Edmond Dantes' imprisonment in the Chateau d'If?
alexandre dumas

Devil's Tower National Monument in Wyoming, USA features prominently in which landmark 1977 science fiction film?
devils tower

In 2008, Daniel Day-Lewis won the 'Oscar' for Best Actor for his role in which film?
daniel day-lewis