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

[EX Q]: Which Nation does Aston Villa Goalkeeper Brad Guzan represent?
[EX A]: brad guzan

[EX Q]: Who played Captain Jean-Luc Picard in the television series 'Star-Trek: The Next Generation'?
[EX A]: jean-luc picard

[EX Q]: What was the name of the space shuttle in which Alan Shepard went into space in 1961?
[EX A]:
alan shepard