cacontology-custodial:TemporalValidationShape leaf node

@prefix cacontology-custodial: <https://cacontology.projectvic.org/custodial#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
cacontology-custodial:TemporalValidationShape a sh:NodeShape ;
    rdfs:label "Temporal Validation Shape"@en ;
    rdfs:comment "Validates temporal consistency in custodial relationships."@en ;
    sh:sparql [ sh:message "Start time must be before end time when both are specified."@en ;
            sh:select """
            SELECT $this
            WHERE {
                $this uco-core:startTime ?start ;
                      uco-core:endTime ?end .
                FILTER (?start >= ?end)
            }
        """ ] ;
    sh:targetClass cacontology-custodial:CustodialRelationship .