@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#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:237926
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  dc:created "2015-01-16"^^xsd:date ;
  dc:modified "2015-11-16"^^xsd:date ;
  skos:altLabel "Earth's lower ionosphere"@en, "Earth's upper ionosphere"@en ;
  skos:broader nalt:13646 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "Earth ionosphere"@en, "ionosfera de la Tierra"@es ;
  skos:related nalt:212235, nalt:212238, nalt:192530 ;
  ns0:marc001 "66217" .

nalt:212235
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "ozonosfera"@es, "ozonosphere"@en ;
  skos:related nalt:237926 .

nalt:212238
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "exosphere"@en, "exosfera"@es ;
  skos:related nalt:237926 .

nalt:13646
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:237926 ;
  skos:prefLabel "Earth atmosphere"@en, "atmósfera terrestre"@es .

nalt:192530
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "química de la atmósfera"@es, "atmospheric chemistry"@en ;
  skos:related nalt:237926 .