# RDDL Model for DocBook

@prefix purpose: <http://www.rddl.org/purposes#> .
@prefix nature: <http://www.rddl.org/natures#> .

<http://docbook.org/ns/docbook>
  purpose:validation [a nature:Object;
      nature:key "http://relaxng.org/ns/structure/1.0";
      nature:target <http://docbook.org/xml/5.0b1/rng/docbook.rng> ];

  purpose:validation [a nature:Object;
      nature:key "http://www.w3.org/2000/10/XMLSchema";
      nature:target <http://docbook.org/xml/5.0b1/rng/docbook.xsd> ];

  purpose:reference [a nature:Object;
      nature:key "http://www.w3.org/1999/xhtml";
      nature:target <http://docbook.org/tdg5/en/html/> ];

  purpose:normative-reference [a nature:Object;
      nature:key "http://www.w3.org/1999/xhtml";
      nature:target <http://docbook.org/specs/wd-docbook-docbook-5.0b1.html> ] .