TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: What was the last silent film in which Chaplin's little tramp appeared?

SOLUTION: chaplin

PROBLEM: Which chemical element is named after the Latin for Copenhagen where it was discovered?

SOLUTION: copenhagen

PROBLEM: Which German writer completed his magisterial final novel 'Austerlitz' just weeks prior to his death in a car crash in 2001?

SOLUTION:
austerlitz