query: SELECT ?item
  (COUNT(DISTINCT ?painting) AS ?count) WHERE {
    ?painting wdt:P195 ?item .
    ?painting wdt:P31 wd:Q3305213 .
    ?painting wdt:P170 ?painter .
    ?painter wdt:P21 wd:Q6581072 .
    
  }  GROUP BY ?item ?name ?count
  ORDER BY DESC (?count)
  LIMIT 150