@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:68278
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2006-10-07"^^xsd:date ;
  dc:modified "2019-03-27"^^xsd:date ;
  skos:altLabel "chloroethylene"@en ;
  skos:broader nalt:245884 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "cloruro de vinilo"@es, "vinyl chloride"@en ;
  skos:related nalt:59072 ;
  ns0:marc001 "52075" .

nalt:245884
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:68278 ;
  skos:prefLabel "compuestos de polivinilo"@es, "polyvinyl compounds"@en .

nalt:59072
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "poly(vinyl chloride)"@en, "poli(colruro de vinilo)"@es ;
  skos:related nalt:68278 .