@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:225317
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2014-08-20"^^xsd:date ;
  dc:modified "2014-11-17"^^xsd:date ;
  skos:altLabel "ferrous carbonate"@en ;
  skos:broader nalt:21099 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "iron carbonate"@en, "carbonato de hierro"@es ;
  skos:related nalt:225288 ;
  ns0:marc001 "68439" .

nalt:225288
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "siderosa"@es, "siderite"@en ;
  skos:related nalt:225317 .

nalt:21099
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:225317 ;
  skos:prefLabel "carbonatos"@es, "carbonates"@en .