query: SELECT ?entity ?entityLabel ?entityDescription 
  WHERE
  {
    ?entity p:P106/ps:P106/wdt:P279* wd:Q26270618 . 
    MINUS { ?entity wdt:P27 []; p:P106/ps:P106/wdt:P279* wd:Q26270618  } 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
  }
  LIMIT 1000