@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix dc: <http://purl.org/dc/elements/1.1/> .
Note that in this example RDFS and OWL are purely namespaces - there is no hierarchy of classes or properties, nor any class restrictions or other RDFS or OWL constructs.
The basic definitions are not included in actual RDFS or OWL ontologies - this is not a default top level ontology (for example, the label for
rdf:type cannot be found searching in an RDFS ontology, unless it contains explicitly these triples.
You could consider this example a metaontology - looks more like a convenient format to hold a few basic information, which could be embedded in the specs instead.