A Web of Data comprising Entity Relationship Type Definition Documents created using RDF that have been
deployed using Linked Data principles. The key defining characteristics of this kind of Web
are: 1) Entity Types (Class or Category) and their associated Atributes (Properties) are identified using
a hyperlink (specifically, HTTP URI); 2) every entity is described using structured RDF sentence collections
where a hyperlink identifies the subject and predicate, while a hyperlink or literal (typed or untyped)
identifies the object.