ex:PatientStudy rdf:type dpv:Process ;
  dpv:hasPersonalData ex:BloodSamples, ex:PatientIdentifier .

ex:BloodSamples rdf:type dpv:SpecialCategoryPersonalData ;
  skos:broader pd:MedicalHealth ;
  skos:narrower pd:BloodType .

ex:PatientIdentifier rdf:type dpv:SensitivePersonalData ;
  skos:broader pd:Identifying .