@prefix hydra: <http://www.w3.org/ns/hydra/core#> .
@prefix tree: <https://w3id.org/tree#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ldes: <https://w3id.org/ldes#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix mr: <http://marineregions.org/ns/ontology#> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix schema: <https://schema.org/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix mrt: <http://marineregions.org/ns/placetypes#> .
@prefix prov: <http://www.w3.org/ns/prov#> .

<https://www.marineregions.org/feed.ttl?page=2026-10-28T07%3A00%3A00Z%2F2026-10-28T08%3A00%3A00Z>
  a tree:Node ;
  tree:relation [
    a tree:LessThanRelation ;
    tree:node <https://www.marineregions.org/feed.ttl?page=2026-10-08T07%3A00%3A00Z%2F2026-10-08T08%3A00%3A00Z> ;
    tree:path dc:modified ;
    tree:value "2026-10-08T08:00:00Z"^^xsd:dateTime
  ] ;
  ldes:retentionPolicy [
    a ldes:RetentionPolicy ;
    ldes:versionAmount 1
  ] .

<https://www.marineregions.org/feed>
  a ldes:EventStream ;
  ldes:pollingInterval 86400 ;
  ldes:timestampPath dc:modified ;
  ldes:versionOfPath dc:isVersionOf ;
  tree:shape [
    a sh:NodeShape ;
    sh:nodeKind sh:IRI ;
    sh:property [
      sh:datatype xsd:dateTime ;
      sh:minCount 1 ;
      sh:path dc:modified
    ], [
      sh:minCount 1 ;
      sh:nodeKind sh:IRI ;
      sh:path dc:isVersionOf
    ], [ sh:path skos:note ], [ sh:path skos:historyNote ], [ sh:path mr:contains ], [ sh:path mr:containsSourceOf ], [ sh:path mr:containsWatercourse ], [ sh:path mr:flowsInto ], [ sh:path mr:flowsThrough ], [ sh:path mr:hasPreferredAlternative ], [ sh:path mr:influences ], [ sh:path mr:isAdjacentTo ], [ sh:path mr:isAdministrativePartOf ], [ sh:path mr:isInfluencedBy ], [ sh:path mr:isPartOf ], [ sh:path mr:isPartlyPartOf ], [ sh:path mr:isPreferredAlternativeOf ], [ sh:path mr:isReplacedBy ], [ sh:path mr:partlyContains ], [ sh:path mr:replaces ], [ sh:path mr:risesIn ], [
      sh:datatype gsp:wktLiteral ;
      sh:maxCount 1 ;
      sh:minCount 0 ;
      sh:path dcat:centroid
    ], [
      sh:datatype gsp:wktLiteral ;
      sh:maxCount 1 ;
      sh:minCount 0 ;
      sh:path dcat:bbox
    ], [
      sh:minCount 0 ;
      sh:nodeKind sh:IRI ;
      sh:path mr:hasGeometry
    ], [
      sh:minCount 0 ;
      sh:node [
        a sh:NodeShape ;
        sh:nodeKind sh:IRI ;
        sh:property [
          sh:class schema:PropertyValue ;
          sh:maxCount 1 ;
          sh:minCount 1 ;
          sh:path schema:identifier
        ], [
          sh:maxCount 1 ;
          sh:minCount 1 ;
          sh:nodeKind sh:IRI ;
          sh:path schema:url
        ]
      ] ;
      sh:path skos:exactMatch
    ], [
      sh:datatype rdf:langString ;
      sh:minCount 1 ;
      sh:path skos:prefLabel
    ], [
      sh:datatype rdf:langString ;
      sh:minCount 1 ;
      sh:path rdfs:label
    ], [
      sh:datatype rdf:langString ;
      sh:minCount 0 ;
      sh:path skos:altLabel
    ], [
      sh:class mr:MRGeoObject ;
      sh:minCount 0 ;
      sh:nodeKind sh:IRI ;
      sh:path mr:isRelatedTo
    ] ;
    sh:targetClass mr:MRGeoObject
  ] ;
  tree:view <https://www.marineregions.org/feed.ttl?page=2026-10-28T07%3A00%3A00Z%2F2026-10-28T08%3A00%3A00Z> ;
  tree:member <http://marineregions.org/mrgid/64214?t=1793172555> .

<http://marineregions.org/mrgid/64214?t=1793172555>
  a mr:MRGeoObject, mrt:Canyons ;
  mr:hasGeometry <http://marineregions.org/mrgid/64214?t=1793172555/geometries?source=306&attributeValue=Undersea_Feature_Name%253D%2527Onjuku%2520Canyon%2527> ;
  mr:isPartOf <http://marineregions.org/mrgid/1908> ;
  dc:isVersionOf <http://marineregions.org/mrgid/64214> ;
  dc:modified "2026-10-28T07:29:15Z"^^xsd:dateTime ;
  rdfs:label "Onjuku Canyon (Canyon(s))"@en ;
  skos:note "Additional information: Accepted by JCUFN: 1977; Depth: 1500m-3000m; Origin of the Names: Named from the nearby feature/s."@en ;
  skos:prefLabel "Onjuku Canyon"@en ;
  dcat:bbox "<http://www.opengis.net/def/crs/OGC/1.3/CRS84> POLYGON ((141.25 35.05,140.86667 35.05,140.86667 34.85,141.25 34.85,141.25 35.05))"^^gsp:wktLiteral ;
  dcat:centroid "<http://www.opengis.net/def/crs/OGC/1.3/CRS84> POINT (141.05 34.95)"^^gsp:wktLiteral ;
  prov:hadPrimarySource <https://www1.kaiho.mlit.go.jp/KOKAI/ZUSHI3/topographic/JCUFN/jcufn_e.html> .

<https://www1.kaiho.mlit.go.jp/KOKAI/ZUSHI3/topographic/JCUFN/jcufn_e.html> rdfs:label "Japanese Committee on Undersea Feature Names (JCUFN)"^^xsd:string .