@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

nalt:49173
  skos:prefLabel "volcanes"@es, "volcanoes"@en ;
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  skos:related nalt:65573 .

nalt:60654
  skos:prefLabel "tefra"@es, "tephra"@en ;
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  skos:narrower nalt:65573 .

<https://lod.nal.usda.gov/naltv#Topic>
  rdfs:label "Topic"@en ;
  a owl:Class .

nalt:65573
  skos:broader nalt:60654 ;
  dc:created "2006-01-19"^^xsd:date ;
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  skos:hiddenLabel "volcanic-ash"@en, "pozzolana"@en ;
  skos:prefLabel "volcanic ash"@en, "ceniza volcánica"@es ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  ns0:marc001 "39704" ;
  dc:modified "2014-07-15"^^xsd:date ;
  skos:related nalt:49173 .

<https://lod.nal.usda.gov/nalt>
  rdfs:label "NALT Full"@en ;
  a skos:ConceptScheme .