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

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

[Q]: In which city was Christopher Columbus born?
[A]: columbus

[Q]: Croatia won their first ever Olympic gold in Atlanta in 1996 in which event?
[A]:
croatia