@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 agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@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:6418
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Chemical> ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2014-08-18"^^xsd:date ;
  skos:broader nalt:6401 ;
  skos:exactMatch <http://id.agrisemantics.org/gacs/C32047>, <http://id.loc.gov/authorities/subjects/sh85003595>, <http://id.cabi.org/cabt/8158>, agrovoc:c_266 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:narrower nalt:6423, nalt:6421, nalt:6422, nalt:6424, nalt:6419, nalt:6420 ;
  skos:prefLabel "alkaline earth metals"@en, "metales alcalinotérreos"@es ;
  ns0:marc001 "1704" .

nalt:6420
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:6418 ;
  skos:prefLabel "berilio"@es, "beryllium"@en .

nalt:6419
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:6418 ;
  skos:prefLabel "bario"@es, "barium"@en .

nalt:6424
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:6418 ;
  skos:prefLabel "estroncio"@es, "strontium"@en .

nalt:6422
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:6418 ;
  skos:prefLabel "magnesio"@es, "magnesium"@en .

nalt:6421
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:6418 ;
  skos:prefLabel "calcio"@es, "calcium"@en .

nalt:6423
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:6418 ;
  skos:prefLabel "radio (elemento químico)"@es, "radium"@en .

nalt:6401
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:6418 ;
  skos:prefLabel "elementos metálicos"@es, "metallic elements"@en .