uco-owl:rdf-first-subjects-shape leaf node

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix uco-owl: <https://ontology.unifiedcyberontology.org/owl/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

uco-owl:rdf-first-subjects-shape a sh:NodeShape ;
    sh:property [ a sh:PropertyShape ;
            sh:maxCount 1 ;
            sh:path rdf:first ],
        [ a sh:PropertyShape ;
            sh:minCount 1 ;
            sh:path rdf:rest ] ;
    sh:targetSubjectsOf rdf:first .