<rdf:RDF xmlns="http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema"
         xml:base="http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#"
         xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
      >
  <!-- A -> B1 -> C and A -> B2 -> C  -->

  <rdf:Description rdf:about='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#B2'>
    <rdf:type rdf:resource='http://www.w3.org/2000/01/rdf-schema#Class'/>
    <rdfs:subClassOf rdf:resource='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#A'/>
  </rdf:Description>

  <rdf:Description rdf:about='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#B1'>
    <rdf:type rdf:resource='http://www.w3.org/2000/01/rdf-schema#Class'/>
    <rdfs:subClassOf rdf:resource='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#A'/>
  </rdf:Description>

  <rdf:Description rdf:about='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#C'>
    <rdf:type rdf:resource='http://www.w3.org/2000/01/rdf-schema#Class'/>
    <rdfs:subClassOf rdf:resource='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#B1'/>
    <rdfs:subClassOf rdf:resource='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#B2'/>
  </rdf:Description>

  <rdf:Description rdf:about='http://hpl.hp.com/semweb/JenaTutorial/RDQL/schema#A'>
    <rdf:type rdf:resource='http://www.w3.org/2000/01/rdf-schema#Class'/>
  </rdf:Description>

</rdf:RDF>
