@prefix hasset: . @prefix skos: . @prefix dcat: . @prefix rdfs: . hasset: skos:prefLabel "HASSET"@en ; a skos:ConceptScheme . hasset:b0059ad2-9ee9-4a0a-87fd-33c03cf5566a skos:prefLabel "BIRTH CONTROL"@en ; a skos:Concept ; skos:narrower hasset:aec2a06b-3f07-428d-9898-f364949c97d3 . hasset:aec2a06b-3f07-428d-9898-f364949c97d3 skos:broader hasset:b0059ad2-9ee9-4a0a-87fd-33c03cf5566a ; skos:inScheme hasset: ; a skos:Concept ; skos:historyNote "TERM CREATED MARCH 1998. PREVIOUSLY THE BROADER CONCEPT 'BIRTH CONTROL METHODS' WOULD HAVE BEEN USED."@en ; skos:altLabel "SAFE PERIOD"@en ; skos:prefLabel "RHYTHM METHOD (BIRTH CONTROL)"@en ; dcat:CatalogRecord "Search for 'RHYTHM METHOD (BIRTH CONTROL)' in UK Data Service Catalogue"@en . dcat:CatalogRecord rdfs:label "Keyword search"@en .