@prefix rdf: . @prefix xsd: . @prefix dcterms: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . skos:narrower . a rdfs:Resource , skos:Concept ; dcterms:contributor ; dcterms:created "2018-09-13T20:04:23.000Z"^^xsd:dateTime ; dcterms:creator ; dcterms:modified "2018-09-21T18:08:07.000Z"^^xsd:dateTime ; skos:broader ; skos:prefLabel "Mass spectrometry"@en ; skos:related . skos:related . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .