This is a rather stilted example, from RDF point of view, designed to look like the sort of thing which Tim Bray thought the RDDL community was used to. It introduces an abstract object which is a multiway relation (like a database record) between the namespace, the supporting document, and the nature of the document, and the purpose of the relation. It looks flat, which may appeal. rddl:resource is, here, the relationship between a namespace and one of these things. Use this to validate this document