3.1.2 Enumerating and testing objects
AllApplicationManualNameSummaryHelp

Availability::- use_module(library(semweb/rdf11)).
Source[nondet]rdf_object(?O)
True when O is a currently known object, i.e. it appears in the object position of some visible triple. If Term is ground, it is pre-processed as the object argument of rdf_assert/3 and the predicate is semidet.
ClioPatria (version V3.1.1-40-g9d9e003)