@prefix rdf: . @prefix gn: . rdf:type gn:Code . @prefix skos: . skos:prefLabel "historical second-order administrative division"@en . @prefix pwdr: . @prefix ns4: . pwdr:describedby ns4:ontology ; skos:historyNote "Added in v3.1"@en ; skos:inScheme gn:A ; skos:notation "A.ADM2H" .