@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:193119
  skos:prefLabel "mareas"@es, "tides"@en ;
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  skos:related nalt:55558 .

nalt:33993
  skos:prefLabel "tsunamis"@es, "tsunamis"@en ;
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  skos:broader nalt:55558 .

<https://lod.nal.usda.gov/nalt-core>
  rdfs:label "NALT Core"@es, "NALT Core"@en ;
  a skos:ConceptScheme .

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

nalt:55558
  skos:exactMatch <http://id.cabi.org/cabt/80840>, <http://aims.fao.org/aos/agrovoc/c_12889>, <http://id.loc.gov/authorities/subjects/sh85093937>, <http://id.agrisemantics.org/gacs/C12514> ;
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:modified "2018-09-14"^^xsd:date ;
  skos:related nalt:187753, nalt:193119 ;
  skos:narrower nalt:33993 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-core>, <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "oceanography"@en, "oceanografía"@es ;
  dc:created "2006-01-19"^^xsd:date ;
  ns0:marc001 "25844" ;
  skos:altLabel "oceanology"@en ;
  skos:broader nalt:68701 .

nalt:68701
  skos:prefLabel "ciencias del mar"@es, "marine science"@en ;
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:55558 .

nalt:187753
  skos:prefLabel "nivel del mar"@es, "sea level"@en ;
  a ns0:Topic, skos:Concept ;
  skos:related nalt:55558 .