odrl:assigner leaf node

@prefix odrl: <http://www.w3.org/ns/odrl/2/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

odrl:assigner a rdf:Property,
        owl:ObjectProperty,
        skos:Concept ;
    rdfs:label "Assigner"@en ;
    rdfs:domain [ a owl:Class ;
            owl:unionOf ( odrl:Rule odrl:Policy ) ] ;
    rdfs:isDefinedBy odrl: ;
    rdfs:range odrl:Party ;
    rdfs:subPropertyOf odrl:function ;
    skos:definition "The Party is the issuer of the Rule."@en .