"Certifier"
"Customer"
"InspectionParty"
"Manufacturer"
"Processor"
"Recipient"
"Requester"
"Supplier"
"TestLab"
"PartyRole": { "type": "string", "enum": [ "Certifier", "Customer", "InspectionParty", "Manufacturer", "Processor", "Recipient", "Requester", "Supplier", "TestLab" ] }