@prefix envthes: <http://vocabs.lter-europe.net/EnvThes/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix iop: <https://w3id.org/iadopt/ont/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

envthes:
  skos:prefLabel "EnvThes"@en ;
  a skos:ConceptScheme .

iop:hasConstraint
  rdfs:comment "A Variable has a Constraint, that confines an Entity involved in the observation." ;
  rdfs:label "hasConstraint" .

iop:hasMatrix
  rdfs:subPropertyOf iop:hasContextObject ;
  rdfs:comment "A Variable might have an Entity in which the ObjectOfInterest is contained." ;
  rdfs:label "hasMatrix" .

iop:hasContextObject
  rdfs:comment "A Variable has an Entity that provides additional background information regarding the ObjectOfInterest." ;
  rdfs:label "hasContextObject" .

envthes:10073
  skos:prefLabel "concentration"@en ;
  a skos:Concept .

iop:hasProperty
  rdfs:comment "A Variable has a Property that characterizes an Entity." ;
  rdfs:label "hasProperty" .

iop:hasObjectOfInterest
  rdfs:comment "A Variable has an Entity whose Property is observed." ;
  rdfs:label "hasObjectOfInterest" .

envthes:30209
  skos:inScheme envthes: ;
  iop:hasConstraint <http://purl.obolibrary.org/obo/PATO_0001823> ;
  iop:hasMatrix <http://vocab.nerc.ac.uk/collection/S12/current/S1214/> ;
  iop:hasContextObject <http://www.marinespecies.org/aphia.php?p=taxdetails&id=140658> ;
  iop:hasProperty envthes:10073 ;
  iop:hasObjectOfInterest <http://vocab.nerc.ac.uk/collection/S27/current/CS003625/> ;
  a skos:Concept ;
  skos:exactMatch <http://vocab.nerc.ac.uk/collection/P01/current/IC000344/> ;
  skos:broader envthes:30208 ;
  skos:prefLabel "concentration of endosulfane sulfate in wet flesh of ostrea edulis"@en .

envthes:30208
  skos:prefLabel "concentration of substance in organism"@en ;
  a iop:Variable, skos:Concept ;
  skos:narrower envthes:30209 .