@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:2531
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2015-06-02"^^xsd:date ;
  skos:altLabel "acetylenes"@en, "acetilenos"@es ;
  skos:broader nalt:6468 ;
  skos:exactMatch <http://id.loc.gov/authorities/subjects/sh97007297> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-core>, <https://lod.nal.usda.gov/nalt> ;
  skos:narrower nalt:6498, nalt:2530 ;
  skos:prefLabel "alkynes"@en, "alquinos"@es ;
  ns0:marc001 "1723" .

nalt:6498
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:2531 ;
  skos:prefLabel "polyacetylenes"@en, "poliacetilenos"@es .

nalt:2530
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:2531 ;
  skos:prefLabel "acetileno"@es, "acetylene"@en .

nalt:6468
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:2531 ;
  skos:prefLabel "hidrocarburos"@es, "hydrocarbons"@en .