query: SELECT ?item (COUNT(DISTINCT ?map) AS ?map_count)  WHERE {
             
             hint:Query hint:optimizer "None" .
    #         ?item wdt:P31/wdt:P279* wd:Q4006 .
             wd:Q4006 ^wdt:P279* ?item .
             ?item ^wdt:P31 ?map .
             MINUS {?map wdt:P31 wd:Q17146139}
         }  GROUP BY ?item
         ORDER BY DESC(?map_count)