SKOS scheme vocabularies
Environmental Peril
https://opda.org.uk/pdtf/scheme/PerilSchemeTurtle ↓
The 12 environmental / local-authority search perils a property's authority-retrieved risk assessments (opda:RiskAssessment) are individuated by. Each peril is a dereferenceable concept governed by a named data authority (ODR-0008d Rule 2); the peril is NEVER an opaque string and NEVER an rdfs:subClassOf hierarchy (a delimited value-space is a scheme, not a class tree).