TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Come Clean was the debut album by which 2000s band?

SOLUTION: come clean

PROBLEM: Field Marshal Arthur Wellesley, shares his better known title with which Southern Hemisphere capital city?

SOLUTION: arthur wellesley, 1st duke of wellington

PROBLEM: What is the name of the nightclub singer who is the central character of the musical 'Cabaret'?

SOLUTION:
cabaret