RDF IRI such as: https://www.w3.org/1999/02/22-rdf-syntax-ns https://www.dublincore.org/specifications/dublin-core/dcmi-terms/dublin_core_terms.ttl http://dbpedia.org/resource/Resource_Description_Framework http://purl.obolibrary.org/obo/GENEPIO_0100155 http://purl.obolibrary.org/obo/NCBITaxon_2697049 ……