<rdf:RDF  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
          xmlns:skos="http://www.w3.org/2004/02/skos/core#"
          xmlns:dc="http://purl.org/dc/elements/1.1/"
          xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
          xmlns:dcterms="http://purl.org/dc/terms/"
          xmlns:foaf="http://xmlns.com/foaf/0.1/">
          
  <!-- Example of 'simple literal' style usage  -->
  
  <skos:Concept rdf:about="http://my.example.org/microwaveovens#concept">
    <skos:prefLabel xml:lang="en">microwave ovens</skos:prefLabel>
    <skos:historyNote xml:lang="en">Introduced 1985.</skos:historyNote>
  </skos:Concept>
  
  <!-- Example of 'structured value' style usage -->
  
  <skos:Concept rdf:about="http://my.example.org/microwaveovens#concept">
    <skos:prefLabel xml:lang="en">microwave ovens</skos:prefLabel>
    <skos:historyNote rdf:parseType="Resource">
      <rdf:value>Introduced 1985.</rdf:value>
      <dc:language>
        <dcterms:RFC1766>
          <rdf:value>EN</rdf:value>
          <rdfs:label>English</rdfs:label>
        </dcterms:RFC1766>
      </dc:language>
      <dc:creator>
        <foaf:Person>
          <foaf:name>John Smith</foaf:name>
          <foaf:mbox rdf:resource="mailto:jsmith@example.org"/>
        </foaf:Person>
      </dc:creator>
    </skos:historyNote>
  </skos:Concept>
  
  <!-- Example of 'URL reference' style usage -->

  <skos:Concept rdf:about="http://my.example.org/microwaveovens#concept">
    <skos:prefLabel xml:lang="en">microwave ovens</skos:prefLabel>
    <skos:historyNote rdf:resource="http://my.example.org/historyNotes/microwaveovens.html"/>
  </skos:Concept>
    
  <!-- Example of 'URL reference' style usage, with additional metadata -->

  <skos:Concept rdf:about="http://my.example.org/microwaveovens#concept">
    <skos:prefLabel xml:lang="en">microwave ovens</skos:prefLabel>
    <skos:historyNote>
      <rdf:Description rdf:about="http://my.example.org/historyNotes/microwaveovens.html">
        <dc:language>
          <dcterms:RFC1766>
            <rdf:value>EN</rdf:value>
            <rdfs:label>English</rdfs:label>
          </dcterms:RFC1766>
        </dc:language>
        <dc:creator>
          <foaf:Person>
            <foaf:name>John Smith</foaf:name>
            <foaf:mbox rdf:resource="mailto:jsmith@example.org"/>
          </foaf:Person>
        </dc:creator>
      </rdf:Description>
    </skos:historyNote>
  </skos:Concept>
  
</rdf:RDF>