query: embed.html#SELECT ?item ?itemLabel ?itemDescription
  {
    ?item wdt:P31 wd:Q133056 .
    FILTER NOT EXISTS { ?item wdt:P17 [] }
    FILTER NOT EXISTS { ?item wdt:P131 wd:Q21590062 }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  LIMIT 1000