query: SELECT ?qual ?qualLabel (COUNT(DISTINCT ?item) AS ?count) WHERE {
         hint:Query hint:optimizer "None" .
       ?item wdt:P17 wd:Q38 .
       ?item p:P2186 ?statement .
       ?statement ?pq_qual ?pq_obj .
       ?qual wikibase:qualifier ?pq_qual .
       SERVICE wikibase:label { bd:serviceParam wikibase:language "it" . }
  }  GROUP BY ?qual ?qualLabel
  ORDER BY DESC (?count)