@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:288248
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2016-10-14"^^xsd:date ;
  dc:modified "2019-03-07"^^xsd:date ;
  skos:altLabel "perfluorooctane sulfonate"@en, "perfluorooctanesulfonic acid"@en, "PFOS (perfluorooctane sulfonic acid)"@en ;
  skos:broader nalt:314140 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "perfluorooctane sulfonic acid"@en, "ácido perfluorooctano sulfónico"@es ;
  skos:related nalt:254, nalt:198668 ;
  ns0:marc001 "78273" .

nalt:314140
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:288248 ;
  skos:prefLabel "ácidos perfluoroalquilos"@es, "perfluoroalkyl acids"@en .

nalt:254
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "surfactantes"@es, "surfactants"@en ;
  skos:related nalt:288248 .

nalt:198668
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "contaminantes orgánicos persistentes"@es, "persistent organic pollutants"@en ;
  skos:related nalt:288248 .