ESQUEMA CANONICO RDF http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/Graph-ex.gif http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/Graph-ex.gif http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#section-data-model http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#section-data-model http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/ http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/