query: embed.html#SELECT ?Uniform_Resource_Name_URN ?item ?itemLabel ?value
  {
      { BIND( wdt:P1006 as ?wdt) ?p wikibase:directClaim ?wdt; p:P7470 ?st. ?st ps:P7470 ?f. OPTIONAL {?st pq:P1793 ?r} BIND(CONCAT("^",COALESCE(?r,"(^.*)"),"$") as ?re) }
      ?item ?wdt ?value. FILTER(REGEX(str(?value),?re)) BIND(URI(REPLACE(str(?value),?re,?f)) as ?Uniform_Resource_Name_URN)
      SERVICE wikibase:label {bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en"}
  }
  LIMIT 100