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

Ex Input:
Alejandro Amaya, Carlos Arruza, Jaime Bravo and Carmelo Torres are famous Mexican?

Ex Output:
alejandro amaya


Ex Input:
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 Output:
the definitive collection


Ex Input:
Annapolis is the capital of which US state?

Ex Output:

annapolis, maryland