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

[EX Q]: Which Dickens novel is subtitled The Parish Boy's Progress?
[EX A]: charles dickens

[EX Q]: Which singer/songwriter, who began releasing hit singles in 1958, has had 3 albums (The Definitive Collection, Waking Up Is Hard to Do & The Music of My Life) on Billboard's Top 200 Albums chart between 2007 & 2010?
[EX A]: the definitive collection

[EX Q]: Who was the first person to sign the American Declaration of Independence?
[EX A]:
united states declaration of independence