l<rdf:RDF
xml:lang="en"
l
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
l
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
l<rdfs:Class rdf:ID="Person">
l
<rdfs:comment>The class of people.</rdfs:comment>
l
<rdfs:subClassOf rdf:resource="http://www.w3.org/
l 2000/03/example/
l classes#Animal"/>
l</rdfs:Class>
l<rdf:Property ID="maritalStatus">
l
<rdfs:range rdf:resource="#MaritalStatus"/>
l
<rdfs:domain rdf:resource="#Person"/>
l</rdf:Property>
l<rdf:Property ID="ssn">
l
<rdfs:comment>Social Security Number</rdfs:comment>
l
<rdfs:range rdf:resource="http://www.w3.org/2000/03/example/classes#Integer"/>
l
<rdfs:domain rdf:resource="#Person"/>
l</rdf:Property>
l<rdf:Property ID="age">
l
<rdfs:range rdf:resource="http://www.w3.org/2000/03/example/classes#Integer"/>
l
<rdfs:domain rdf:resource="#Person"/>
l</rdf:Property>
l<rdfs:Class rdf:ID="MaritalStatus"/>
l<MaritalStatus rdf:ID="Married"/>
l<MaritalStatus rdf:ID="Divorced"/>
l<MaritalStatus rdf:ID="Single"/>
l<MaritalStatus rdf:ID="Widowed"/>
l</rdf:RDF>
Resource Description
Framework(RDF) Schema Specification 1.0
http://www.w3.org/TR/2000/CR-rdf-schema-20000327/