query: SELECT ?item ?itemLabel ?einddatum ?type ?vermeld_in WHERE {
    ?item (wdt:P31/wdt:P279*) wd:Q83620.
    ?item wdt:P131 wd:Q9920.
    ?item p:P582 ?eind_statement.
    ?eind_statement ps:P582 ?einddatum.  
    OPTIONAL {?eind_statement prov:wasDerivedFrom ?provenance .
      ?provenance pr:P248 ?vermeld_in }
  }