@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix lcsh: <http://www.yso.fi/onto/lcsh/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://lod.nal.usda.gov/nalt/1833> skos:closeMatch lcsh:sh95005647 .
lcsh:sh85095181
  skos:notation "QC350-QC467" ;
  skos:prefLabel "Optics"@en ;
  a skos:Concept .

lcsh:sh95005647
  a skos:Concept ;
  skos:altLabel "Density, Optical"@en, "Absorptivity (Optics)"@en, "Optical density"@en ;
  skos:member lcsh:collection_LCSH_General, lcsh:collection_LCSHAuthorizedHeadings ;
  skos:broader lcsh:sh85095181 ;
  skos:prefLabel "Opacity (Optics)"@en ;
  skos:inScheme <http://www.yso.fi/onto/lcsh> ;
  skos:related lcsh:sh85000247 ;
  dc:modified "1997-02-24T10:12:11"^^xsd:dateTime ;
  skos:closeMatch <http://lod.nal.usda.gov/nalt/1833> ;
  dc:created "1995-07-05T00:00:00"^^xsd:dateTime .

lcsh:sh85000247
  skos:prefLabel "Light absorption"@en ;
  a skos:Concept ;
  skos:related lcsh:sh95005647 .

<http://www.yso.fi/onto/lcsh> a skos:ConceptScheme .