@prefix rdf: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . skos:broader . skos:broader . skos:narrower . skos:narrower . skos:broader . skos:related . skos:broader . a skos:Concept , rdfs:Resource ; skos:broader , ; skos:narrower , , , ; skos:prefLabel "Heliosphere"@en ; skos:related . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .