@prefix iop: <https://w3id.org/iadopt/ont/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ex: <http://example.org/iadopt/challenge/> .

<http://example.org/iadopt/CCA/GCs187LH>
    a 
        iop:Variable ;
    rdfs:label 
        "Radioactivity_content_of_137Cs_LaHage" ;
    rdfs:comment 
        """Radioactivity content of Cesium-137 in sea water from discharges of the nuclear fuel reprocessing plant at La Hage, France. Cesium-137 is a radioactive isotope of element cesium, with a half-life of about 30 years. Units: Becquerel per kilogram (Bq kg-1).""" ;
    iop:hasObjectOfInterest 
        _:b0 ;
    iop:hasContextObject 
        <https://www.wikidata.org/entity/Q165> ;
    iop:hasProperty 
        <http://qudt.org/vocab/quantitykind/MassicActivity> ;
    iop:hasConstraint 
        [ a iop:Constraint ;
             rdfs:label "origin: La Hague plant" ;
             iop:constrains <https://www.wikidata.org/entity/Q1154826> ;
        ] .

_:b0
    a 
        iop:Entity ,
        iop:AsymmetricSystem ;
    iop:hasNumerator 
        <https://www.wikidata.org/entity/Q1154826> ;
    iop:hasDenominator 
        <https://www.wikidata.org/entity/Q283> .

<http://qudt.org/vocab/quantitykind/MassicActivity>
    a 
        iop:Property ;
    rdfs:label 
        "Massic Activity" .

<https://www.wikidata.org/entity/Q165>
    a 
        iop:Entity ;
    rdfs:label 
        "sea" .

<https://www.wikidata.org/entity/Q1154826>
    a 
        iop:Entity ;
    rdfs:label 
        "Caesium-137" .

<https://www.wikidata.org/entity/Q283>
    a 
        iop:Entity ;
    rdfs:label 
        "water" .