loop.owl

来自「jena2.5.4推理机系统的一种最基本实现 HP实验室出品」· OWL 代码 · 共 28 行

<?xml version="1.0"?>

<!DOCTYPE rdf:RDF [
    <!ENTITY eg   'http://jena.hpl.hp.com/eg'>
    <!ENTITY egns   'http://jena.hpl.hp.com/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="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:eg = "&egns;" >
  <owl:Class rdf:about="&egns;C">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty rdf:resource="&egns;R"
           rdf:type="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
        <owl:someValuesFrom rdf:resource="&egns;C"/>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <eg:C rdf:about="&egns;i" />
</rdf:RDF>