https://cacontology.projectvic.org/extremist-enterprises#GufoCollectionMembershipRule
@prefix cacontology-enterprises: <https://cacontology.projectvic.org/extremist-enterprises#> .
@prefix gufo: <http://purl.org/nemo/gufo#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
cacontology-enterprises:GufoCollectionMembershipRule a sh:NodeShape ;
sh:property [ sh:message "gUFO Collections must have at least one member."@en ;
sh:minCount 1 ;
sh:path [ sh:inversePath gufo:isCollectionMemberOf ] ] ;
sh:targetClass gufo:Collection .