TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: The Bob Dylan songs 'Desolation Row', 'Tombstone Blues' and 'Like A Rolling Stone' featured on which album?

SOLUTION: tombstone blues

PROBLEM: Which English Leicester-born boxer fought Marvin Hagler in 1983 for the WBC and WBA World Middleweight titles and lost by a technical knockout in the sixth round?

SOLUTION: boxing

PROBLEM: Who had a 2001 hit with Butterfly?

SOLUTION:
butterfly