Given an open-ended topic (movie name, a persons name, an event, sports, etc) generate a simple trivia-type question.

[EX Q]: siege of paris
[EX A]: Which army besieged Paris from 18 September 1870 for 4 months?

[EX Q]: angus
[EX A]: What is the county town of the Scottish county of Angus?

[EX Q]: candela
[EX A]:
A candela is a measure of what?