query: SELECT 
  	?item 
  	(GROUP_CONCAT(CONCAT("[",str(?sitelink)," ", ?lang,"]"); separator=", ") as ?wp) 
  	(COUNT(distinct ?sitelink) as ?count) 
      WHERE { ?item wdt:P27 wd:Q36 . ?item wdt:P106 wd:Q13219587.  
          OPTIONAL { ?sitelink schema:abosut ?item . ?sitelink schema:inLanguage ?lang .  } . 
          FILTER NOT EXISTS { ?wfr schema:about ?item . ?wfr schema:inLanguage "pl" } 
      }
  GROUP BY ?item  
  LIMIT 100