http://example.com/tutorial2/vocabulary/base#contains
Property base:contains

oml:relationEntity

base:Contains

oml:type

oml:ForwardRelation

rdf:type

	owl:AsymmetricProperty
	owl:InverseFunctionalProperty
	owl:IrreflexiveProperty
	owl:ObjectProperty

rdfs:domain

base:ContainedElement

rdfs:range

base:ContainedElement

rdfs:subPropertyOf

base:contains

owl:inverseOf

base:isContainedIn