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

[EX Q]: Whose tale in Chaucer's The Canterbury Tales tells of a knight sent away by his queen to discover what women want above all else?
[EX A]: the canterbury tales

[EX Q]: Who released the albums Sentimental Journey, Goodnight Vienna, Bad Boy, Old Wave and Vertical Man between 1970 and 1999?
[EX A]: vertical man

[EX Q]: In which series are FBI agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) the investigators of cases involving paranormal phenomena?
[EX A]:
dana scully