pm#identifier__id
  supertype:  social_attribute_or_quality_or_measure
  subtype:  passport_identifier
  subtype:  social_welfare_identifier
  subtype:  serial_number
  subtype:  URI__Uniform_Ressource_Identifier
     subtype:  URL__Uniform_Ressource_Locator
     subtype:  URN__Uniform_Ressource_Number

14 statements are about indirect instances of identifier: graph1_on_thing, graph1_on_collection, graph1_on_creation_result, graph1_on_situation, graph1_on_conference, graph1_on_description, graph1_on_description_container, graph1_on_description_medium, graph1_on_file, graph1_on_written_material, graph1_on_publication, graph1_on_report, graph35_on_article, graph1_on_ontology
  click here to display them or click here for a search form or here to add a statement