@prefix operatingsystem: <http://www.semanticweb.org/sony/ontologies/2014/1/untitled-ontology-5#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

operatingsystem:Free_space_management
  skos:prefLabel "Free space management"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

operatingsystem:Allocation_methods
  skos:prefLabel "Allocation methods"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

operatingsystem:File_protection
  skos:prefLabel "File protection"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

operatingsystem:Operating_System
  skos:prefLabel "Operating System"@en ;
  a skos:Concept ;
  skos:narrower operatingsystem:File_systems .

operatingsystem:File_concept
  skos:prefLabel "File concept"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

<http://www.semanticweb.org/sony/ontologies/2014/1/untitled-ontology-5/conceptscheme> a skos:ConceptScheme .
operatingsystem:Access_methods
  skos:prefLabel "Access methods"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

operatingsystem:File_support
  skos:prefLabel "File support"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

operatingsystem:Directory_systems
  skos:prefLabel "Directory systems"@en ;
  a skos:Concept ;
  skos:broader operatingsystem:File_systems .

operatingsystem:File_systems
  skos:broader operatingsystem:Operating_System ;
  skos:narrower operatingsystem:Free_space_management, operatingsystem:File_support, operatingsystem:Directory_systems, operatingsystem:File_protection, operatingsystem:Allocation_methods, operatingsystem:File_concept, operatingsystem:Access_methods ;
  skos:inScheme <http://www.semanticweb.org/sony/ontologies/2014/1/untitled-ontology-5/conceptscheme> ;
  skos:prefLabel "File systems"@en ;
  a skos:Concept .