lRDF/RDFS
Constraints
nrdf:Property property-name
nrdfs:subPropertyOf
nrdfs:domain class-exprssion
uIf there are multiple
descriptions, they express intersections
nrdfs:range class-expression
uIf there are multiple
descriptions, they express intersections
lRestrictions to other
properties
nowl:equivalentProperty propery-name
nowl:inverseOf propery-name
lGlobal cardinality
constraints
nowl:FunctionalProperty
nowl:InverseFunctionalProperty
lLogical
characteristics
nowl:SymmetricProperty
nowl:TransitiveProperty