query: #defaultView:Table
  SELECT DISTINCT ?entity ?entityLabel WHERE {
    ?entity wdt:P31 wd:Q759421.
    ?entity wdt:P131 ?location .      # which have a location
    ?location wdt:P131* wd:Q1198 .    # which is in NRW
    FILTER(!EXISTS { ?entity wdt:P809 ?x. })
    SERVICE wikibase:label { bd:serviceParam wikibase:language "de" }
  }
  ORDER BY ?entityLabel