3.1.2 Enumerating and testing objects
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SWI-Prolog Semantic Web Library 3.0
Two RDF APIs
library(semweb/rdf11): The RDF database
Enumerating and testing objects
rdf_subject/1
rdf_predicate/1
rdf_object/1
rdf_node/1
rdf_graph/1
rdf_literal/1
rdf_bnode/1
rdf_iri/1
rdf_name/1
rdf_term/1
rdf_is_iri/1
rdf_is_bnode/1
rdf_is_literal/1
rdf_is_name/1
rdf_is_object/1
rdf_is_predicate/1
rdf_is_subject/1
rdf_is_term/1
Availability:
:- use_module(
library(semweb/rdf11)
).
[nondet]
rdf_literal
(
?Term
)
True if
Term
is a known literal. If
Term
is ground, it is pre-processed as the object argument of
rdf_assert/3
and the predicate is
semidet
.
[nondet]rdf_literal(?Term)[nondet]rdf_literal(?Term)