@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@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 .
nalt:53664_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Roca sedimentaria fina formada principalmente por arcilla o lodo consolidado. Constituye la roca sedimentaria más común."@es, "A fine-grained sedimentary rock composed mostly of consolidated clay or mud. Shale is the most frequently occurring sedimentary rock."@en ;
  dc:source "US, Environmental Protection Agency" .

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

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

nalt:53664
  a <https://lod.nal.usda.gov/naltv#Product>, skos:Concept ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2017-10-10"^^xsd:date ;
  skos:broader nalt:51549 ;
  skos:definition nalt:53664_def ;
  skos:exactMatch <http://id.cabi.org/cabt/106427>, <http://id.agrisemantics.org/gacs/C31754> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-core>, <https://lod.nal.usda.gov/nalt> ;
  skos:narrower nalt:55741 ;
  skos:prefLabel "pizarra"@es, "shale"@en ;
  skos:related nalt:306430 ;
  ns0:marc001 "33751" .

nalt:51549
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:53664 ;
  skos:prefLabel "esquisto de barro"@es, "mudstone"@en .

nalt:306430
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "gas pizarra"@es, "shale gas"@en ;
  skos:related nalt:53664 .

nalt:55741
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:53664 ;
  skos:prefLabel "pizarra de aceite"@es, "oil shale"@en .