TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Devil's Tower National Monument in Wyoming, USA features prominently in which landmark 1977 science fiction film?

SOLUTION: devils tower

PROBLEM: Name Alfred Hitchcock's first sound film as director?

SOLUTION: alfred hitchcock

PROBLEM: Who is generally considered to have invented the first electric battery cell in 1800?

SOLUTION:
battery