@prefix rdf: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . a rdfs:Resource , skos:Concept ; skos:narrower , , , ; skos:prefLabel "Astrophysical processes"@en ; skos:topConceptOf . rdfs:label "The Unified Astronomy Thesaurus"@en ; skos:hasTopConcept . skos:broader . skos:broader . skos:broader . skos:broader . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .