observable:ContactEmail leaf node

@prefix core: <https://ontology.unifiedcyberontology.org/uco/core/> .
@prefix observable: <https://ontology.unifiedcyberontology.org/uco/observable/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

observable:ContactEmail a owl:Class,
        sh:NodeShape ;
    rdfs:label "ContactEmail"@en ;
    rdfs:comment "A contact email is a grouping of characteristics unique to details for contacting a contact entity by email."@en ;
    rdfs:subClassOf core:UcoInherentCharacterizationThing ;
    sh:property [ sh:class observable:ObservableObject ;
            sh:maxCount 1 ;
            sh:nodeKind sh:IRI ;
            sh:path observable:emailAddress ],
        [ sh:datatype xsd:string ;
            sh:message "As of UCO 1.4.0, the datatype to use for observable:contactEmailScope should be xsd:string.  Not using xsd:string will be an error in UCO 2.0.0." ;
            sh:path observable:contactEmailScope ;
            sh:severity sh:Warning ],
        [ sh:maxCount 1 ;
            sh:nodeKind sh:Literal ;
            sh:path observable:contactEmailScope ],
        observable:ContactEmail-contactEmailScope-in-shape ;
    sh:targetClass observable:ContactEmail .