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Availability::- use_module(library(semweb/rdf11)).
Source[det]rdf_assert(+S, +P, +O)
[det]rdf_assert(+S, +P, +O, +G)
Assert a new triple. If O is a literal, certain Prolog terms are translated to typed RDF literals. These conversions are described with rdf_canonical_literal/2.

If a type is provided using Value^^Type syntax, additional conversions are performed. All types accept either an atom or Prolog string holding a valid RDF lexical value for the type and xsd:float and xsd:double accept a Prolog integer.

Availability::- use_module(library(semweb/rdf_db)).
Source[det]rdf_assert(+Subject, +Predicate, +Object)
Assert a new triple into the database. This is equivalent to rdf_assert/4 using Graph user. Subject and Predicate are resources. Object is either a resource or a term literal(Value). See rdf/3 for an explanation of Value for typed and language qualified literals. All arguments are subject to name-space expansion. Complete duplicates (including the same graph and‘line' and with a compatible‘lifespan') are not added to the database.