4.0.0 org.eclipse.rdf4j rdf4j-core 5.0.0-SNAPSHOT rdf4j-rio pom RDF4J: Rio Rio (RDF I/O) is an API for parsers and writers of various RDF file formats. api languages datatypes binary hdt jsonld-legacy jsonld n3 nquads ntriples rdfjson rdfxml trix turtle trig