@prefix drom: <http://data.odeuropa.eu/vocabulary/drom/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ns0: <http://dbpedia.org/property/> .

drom:
  skos:hasTopConcept drom:citrus ;
  a skos:ConceptScheme ;
  rdfs:label "Drom's fragrance circle"@en .

drom:lemon_oil
  skos:broader drom:citrus ;
  a skos:Concept ;
  skos:prefLabel "Lemon Oil"@en .

drom:orange_oil
  skos:broader drom:citrus ;
  a skos:Concept ;
  skos:prefLabel "Orange Oil"@en .

drom:mandarin_oil
  skos:broader drom:citrus ;
  a skos:Concept ;
  skos:prefLabel "Mandarin Oil"@en .

drom:grapefruit_oil
  skos:broader drom:citrus ;
  a skos:Concept ;
  skos:prefLabel "Grapefruit Oil"@en .

drom:musk
  ns0:next drom:citrus ;
  a skos:Concept ;
  skos:prefLabel "Musk"@en .

drom:floral
  ns0:prev drom:citrus ;
  a skos:Concept ;
  skos:prefLabel "Floral"@en .

drom:citrus
  a skos:Concept ;
  skos:inScheme drom: ;
  skos:prefLabel "Citrus"@en ;
  skos:topConceptOf drom: ;
  skos:narrower drom:lemon_oil, drom:orange_oil, drom:mandarin_oil, drom:grapefruit_oil ;
  ns0:next drom:floral ;
  ns0:prev drom:musk .