@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://opda.org.uk/pdtf/shape/PropertyICBreachShape> a sh:NodeShape ;
    sh:targetClass <https://opda.org.uk/pdtf/Property> ;
    sh:property [ sh:path <https://opda.org.uk/pdtf/identifiesSameProperty> ; sh:severity sh:Violation ; sh:message "Property co-reference MUST use opda:identifiesSameProperty (an IRI-valued ObjectProperty); owl:sameAs is forbidden per ODR-0005 Rule 5 because it propagates identity-collapse across contexts under reasoning." ] .