@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/hasSubAssessment> a owl:ObjectProperty ;
    rdfs:label "has sub-assessment" ;
    skos:definition "The result-recursion link of a risk assessment to a constituent leaf risk assessment: a mereological part-of holding between a parent assessment and each of its riskSubcategories entries." ;
    rdfs:comment "Self-referential mereological part-of: a riskSubcategories[] entry is itself a leaf opda:RiskAssessment (ODR-0008d Rule 4). The node shape realises the recursion via sh:node opda:RiskAssessment. This is the RESULT-recursion axis; the peril → sub-peril TAXONOMY axis is skos:narrower within opda:PerilScheme — two distinct axes (Rule 4)." ;
    rdfs:domain <https://opda.org.uk/pdtf/RiskAssessment> ;
    rdfs:range <https://opda.org.uk/pdtf/RiskAssessment> ;
    dct:source <https://opda.org.uk/pdtf/harness/odr/ODR-0008d/section-Rule-4> .

# one hop — immediate neighbours
<https://opda.org.uk/pdtf/RiskAssessment> a owl:Class .