@prefix rdf: . @prefix xsd: . @prefix dcterms: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . skos:narrower . skos:related . skos:related . skos:related . a skos:Concept , rdfs:Resource ; dcterms:contributor ; dcterms:created "2018-09-13T14:54:24Z"^^xsd:dateTime ; dcterms:creator ; dcterms:modified "2018-09-14T17:07:07Z"^^xsd:dateTime ; skos:broader ; skos:prefLabel "Main sequence"@en ; skos:related , , . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .