@prefix ex: <http://example.org/iadopt/challenge/> .
@prefix iop: <https://w3id.org/iadopt/ont/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

ex:bp a iop:Variable ;
    rdfs:label "bioling point of a pure liquid substance" ;
    rdfs:comment "measurement of the thermodynamic temperature (or temperature range) for the transformation of a pure liquid into a gas" ;
    iop:hasConstraint [
      a iop:Constraint ;
      rdfs:label "at the liquid to gas phase transition" ;
      iop:constrains ex:Prop
    ], [
      a iop:Constraint ;
      rdfs:label "atmospheric pressure (required)" ;
      iop:constrains ex:Prop
    ] ;
    iop:hasObjectOfInterest ex:OoI ;
    iop:hasProperty ex:Prop .

ex:OoI
    a iop:Entity ;
    rdfs:label "chemical substance" .

ex:Prop
    a iop:Property ;
    rdfs:label "thermodynamic temperature" .