DAML+OIL example

<rdf:Property ID="memberOf">
  <rdf:type rdf:resource="http://www.ontoknowledge.org/oil/rdf-schema/2000/11/10-oil-standard#TransitiveProperty"/>
  <rdfs:label xml:lang="en">member of</rdfs:label>
  <rdfs:comment>The relationship of a member of a group to that group.</rdfs:comment>
  <rdfs:range rdf:resource="#Group"/>
  <rdfs:domain rdf:resource="#Principle"/>
  <rdfs:isDefinedBy resource="http://www.w3.org/2001/02/acls/ns#"/>
</rdf:Property>