@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:41736
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2018-11-16"^^xsd:date ;
  skos:altLabel "humic compounds"@en ;
  skos:broader nalt:24613 ;
  skos:exactMatch <http://id.agrisemantics.org/gacs/C21390> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-core>, <https://lod.nal.usda.gov/nalt> ;
  skos:narrower nalt:46142, nalt:41735, nalt:46139 ;
  skos:prefLabel "sustancias húmicas"@es, "humic substances"@en ;
  skos:related nalt:132817 ;
  ns0:marc001 "18672" .

nalt:46142
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:41736 ;
  skos:prefLabel "humina"@es, "humin"@en .

nalt:41735
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:41736 ;
  skos:prefLabel "ácidos fúlvicos"@es, "fulvic acids"@en .

nalt:132817
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "humus"@es, "humus"@en ;
  skos:related nalt:41736 .

nalt:46139
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:41736 ;
  skos:prefLabel "ácidos húmicos"@es, "humic acids"@en .

nalt:24613
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:41736 ;
  skos:prefLabel "materia orgánica"@es, "organic matter"@en .