
64 Foundations of Semantic Web Technologies
enced in other triples (due to the fact that literals are only allowed to occur as
triple objects). Hence it seems more sensible to use a URI for the proposition
leading to something like:
ex:detective ex:supposes ex:theButlerKilledTheGardener .
Yet, this approach leaves us with the problem that the subordinate clause
of our sentence is compressed into one URI and hence lacks structural trans-
parency. Of course it is easy to model just the second part of the sentence as
a separate triple:
ex:butler ex:killed ex:gardener .
Actually, a kind of “nested” representation, where the object of a triple is
a triple