query: SELECT DISTINCT ?item where {
   ?item wdt:P106 wd:Q1028181 . 
   ?item wdt:P21 wd:Q6581072 .
   ?item wdt:P18 ?pic .
   OPTIONAL {?item wdt:P373 ?commonscat . }
   FILTER(!bound(?commonscat)) .
   BIND (xsd:integer(STRAFTER(str(?item), "Q")) AS ?qid)
  } ORDER BY DESC(?qid) LIMIT 500