@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://dataportal.ponderful.eu/dataset/495fea23-4d46-431b-bec5-0d030b29a29e> a dcat:Dataset ;
    dct:description """Database contains lake monitoring results since 1992 concerning ca 800 Polish lakes. It embraces data on: morphometry, hydrology, physico-chemistry (including chlorophyll a), land use in direct catchment, point sources of pollution. For each lake physico-chemical data from 2 sampling occasions available (spring and summer. For some lakes data from 2-5 years  exist. Ten lakes monitored since 1999 six times per year during vegetation period.\r
\r
More information on this dataset can be found in the Freshwater Metadatabase - BF_W_46-L-C (http://www.freshwatermetadata.eu/metadb/bf_mdb_view.php?entryID=BF_W_46-L-C).""" ;
    dct:identifier "495fea23-4d46-431b-bec5-0d030b29a29e" ;
    dct:issued "2017-06-23T14:47:33.649028"^^xsd:dateTime ;
    dct:modified "2017-06-23T14:47:33.665922"^^xsd:dateTime ;
    dct:publisher <https://dataportal.ponderful.eu/organization/922a02a7-6d2f-404a-8080-4d2e884f3d5f> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((14.1000 48.9900, 24.1500 48.9900, 24.1500 54.4700, 14.1000 54.4700, 14.1000 48.9900))"^^gsp:wktLiteral,
                "{\"type\": \"Polygon\", \"coordinates\": [[[14.1, 48.99], [24.15, 48.99], [24.15, 54.47], [14.1, 54.47], [14.1, 48.99]]]}"^^<https://www.iana.org/assignments/media-types/application/vnd.geo+json> ] ;
    dct:title "JEZIORA (Polish lakes)" ;
    dcat:distribution <https://dataportal.ponderful.eu/dataset/495fea23-4d46-431b-bec5-0d030b29a29e/resource/f46a97a9-d0b6-49f2-a366-6bf0cfc6f700> ;
    dcat:keyword "Lake monitoring",
        "hydrology",
        "land use in direct catchment",
        "morphometry",
        "physico-chemistry",
        "point sources of pollution" .

<https://dataportal.ponderful.eu/dataset/495fea23-4d46-431b-bec5-0d030b29a29e/resource/f46a97a9-d0b6-49f2-a366-6bf0cfc6f700> a dcat:Distribution ;
    dct:issued "2017-06-23T16:47:33.669130"^^xsd:dateTime ;
    dct:modified "2017-06-23T16:47:33.669130"^^xsd:dateTime ;
    dct:title "Unnamed resource" ;
    dcat:accessURL <http://> .

<https://dataportal.ponderful.eu/organization/922a02a7-6d2f-404a-8080-4d2e884f3d5f> a foaf:Organization ;
    foaf:name "Freshwater Information Platform" .