query: SELECT DISTINCT ?item WHERE {
    {
      ?item wdt:P31/wdt:P279* wd:Q24339576 .
      FILTER NOT EXISTS {
        ?item wdt:P1705 ?nativelabel .
      }
    }
    UNION
    {
      ?item wdt:P31/wdt:P279* wd:Q24339576 .
      ?item wdt:P1705 ?nativelabel .
      FILTER (lang(?nativelabel) != "non")
    }
  }