The source node in most cases contains the sample message as written by the developer. If it looks like a dot-delimitted string such as "form.label.firstname", then the developer has not provided a default message.

Taxonomy Taksonomia key: role.policy.taxonomy Taxonomy / All functions Katalog / Wszystkie funkcje key: role.policy.taxonomy.all_functions Taxonomy / Assign Taksonomia / Przypisz key: role.policy.taxonomy.assign Taxonomy / Manage Taksonomia / Zarządzanie key: role.policy.taxonomy.manage Taxonomy / Read Taksonomia / Czytaj key: role.policy.taxonomy.read