@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@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#Topic>
  rdfs:label "Topic"@en ;
  a owl:Class .

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

nalt:67253
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  skos:hiddenLabel "total-hardness"@en, "hardness of water"@en, "calcium hardness"@en, "hard-water"@en, "magnesium hardness"@en, "water-hardness"@en, "hard water"@en, "hardness ions"@en, "Mg hardness"@en, "total hardness"@en, "Ca hardness"@en ;
  skos:prefLabel "water hardness"@en, "dureza del agua"@es ;
  skos:exactMatch <http://id.cabi.org/cabt/124088>, <http://aims.fao.org/aos/agrovoc/c_25423>, <http://id.agrisemantics.org/gacs/C24302> ;
  skos:broader nalt:26766 ;
  dc:modified "2019-02-22"^^xsd:date ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-core>, <https://lod.nal.usda.gov/nalt> ;
  ns0:marc001 "39816" ;
  dc:created "2006-01-19"^^xsd:date .

nalt:26766
  skos:prefLabel "calidad del agua"@es, "water quality"@en ;
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:67253 .