<?xml version="1.0"?>

<!DOCTYPE rdf:RDF [
    <!ENTITY eg   'urn:x-hp:eg/'>
    <!ENTITY rdf  'http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
    <!ENTITY rdfs 'http://www.w3.org/2000/01/rdf-schema#'>
    <!ENTITY xsd  'http://www.w3.org/2001/XMLSchema#'>
    <!ENTITY owl  "http://www.w3.org/2002/07/owl#" >
]>

<rdf:RDF xmlns:rdf="&rdf;" xmlns:rdfs="&rdfs;" xmlns:xsd="&xsd;" xmlns:owl="&owl;"
         xml:base="urn:x-hp:eg/" xmlns="&eg;">
  
  <Computer rdf:about="&eg;whiteBoxZX">
    <rdf:type rdf:resource="&eg;GamingComputer" />
  </Computer>

</rdf:RDF>