@prefix ckg: <http://demo.openlinksw.com/schemas/CustomerKG/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <http://schema.org/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://demo.openlinksw.com/schemas/CustomerKG/identity/> a owl:Ontology ;
    rdfs:label "CustomerKG identity reconciliation vocabulary"@en .

ckg:emailHash a owl:InverseFunctionalProperty, owl:DatatypeProperty ;
    rdfs:isDefinedBy <http://demo.openlinksw.com/schemas/CustomerKG/identity/> ;
    rdfs:label "email hash"@en ;
    rdfs:comment "A pseudonymous hash of an email address. Two records that carry the same hash describe the same person, so the property is declared inverse functional and a reasoner derives owl:sameAs between them."@en ;
    rdfs:domain schema:Person ;
    rdfs:range xsd:string .