RDF Schema: Defining the Application Namespace Tags

<rdf:RDF xml:lang="en"
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
  <rdf:Description ID="MotorVehicle">
    <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf
      rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
  </rdf:Description>
  
  <rdf:Description ID="PassengerVehicle">
    <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf rdf:resource="#MotorVehicle"/>
  </rdf:Description>
  
  <rdf:Description ID="registeredTo">
    <rdf:type 
      rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
      <rdfs:domain rdf:resource="#MotorVehicle"/>
    <rdfs:range
      rdf:resource="http://www.w3.org/2000/03/example/classes#Person"/>
  </rdf:Description>