@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:246479
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2015-04-03"^^xsd:date ;
  dc:modified "2018-11-15"^^xsd:date ;
  skos:altLabel "plexiglass"@en, "polymethacrylates"@en, "polymethyl methacrylate"@en, "plexiglas"@en, "poly(methyl-methacrylate)"@en, "poly (methyl methacrylate)"@en ;
  skos:broader nalt:246455 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "polimetilmetacrilato"@es, "polymethylmethacrylate"@en ;
  skos:related nalt:571 ;
  ns0:marc001 "71852" .

nalt:246455
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:246479 ;
  skos:prefLabel "methylmethacrylates"@en, "metacrilatos de metilo"@es .

nalt:571
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "vidrio"@es, "glass"@en ;
  skos:related nalt:246479 .