Canonical IRIs from the RDF Schema (RDFS) vocabulary. See https://www.w3.org/TR/rdf-schema/.
rdfs:Class.
rdfs:label.
rdfs:comment.
rdfs:domain.
rdfs:range.
rdfs:subClassOf.
rdfs:subPropertyOf.
rdfs:isDefinedBy.
rdfs:seeAlso.
rdfs:Resource (top class).
rdfs:Literal.
The RDFS namespace IRI:
http://www.w3.org/2000/01/rdf-schema#.