query: # https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/examples#Authority_control_properties_usage_for_paintings
  SELECT ?propertyLabel ?propertyDescription (COUNT(?propertyclaim) AS ?count)
  WHERE
  {
    hint:Query hint:optimizer "None".
    ?item wdt:P497 [] .
    ?property wikibase:propertyType wikibase:ExternalId .
    ?property wikibase:claim ?propertyclaim .
    
    ?item ?propertyclaim [] .
  	SERVICE wikibase:label {            # ... include the labels
  		bd:serviceParam wikibase:language "en" .
  	}  
  } GROUP BY ?propertyLabel ?propertyDescription ORDER BY DESC (?count)
  LIMIT 100