@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Chemical>
  a owl:Class ;
  rdfs:label "Chemical"@en .

nalt:258290
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2015-07-31"^^xsd:date ;
  dc:modified "2020-04-06"^^xsd:date ;
  skos:altLabel "graphite oxide"@en ;
  skos:broader nalt:7279 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "graphene oxide"@en, "óxido de grafeno"@es ;
  skos:related nalt:216856 ;
  ns0:marc001 "67487" .

nalt:216856
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "grafeno"@es, "graphene"@en ;
  skos:related nalt:258290 .

nalt:7279
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:258290 ;
  skos:prefLabel "óxidos"@es, "oxides"@en .