query: PREFIX schema: <http://schema.org/>
  
  SELECT ?item ?itemLabel WHERE {
    ?item wdt:P20 ?place.
    ?place wdt:P17 wd:Q408.
    ?item wdt:P31 wd:Q5.
    ?article schema:about ?item.
    ?article schema:isPartOf <https://en.wikipedia.org/>.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    FILTER(NOT EXISTS { ?item wdt:P21 _:b1. })
  }