Given a broad category, generate a trivia-type question based on a specific entity in that category. The question should be non-ambiguous. External resources such as Wikipedia could be used to obtain the facts.

[Q]: measurement_unit
[A]: What is the SI derived unit of electrical capacitance?


[Q]: opera
[A]: Who stabbed 'Carmen' in the opera of the same name?


[Q]: book
[A]:
Which Daphne du Maurier novel is centred around a coaching house on Bodmin Moor?