query: #title: Frequently used values generally have a Commons category
  # Complex constraint from [[Property talk:P734]]
  # TODO: add Commons category and/or Commons sitelink to item
  SELECT ?item ?ct ?sampleitem ?title
  WHERE
  {
    {
      SELECT ?item (count(*) as ?ct) (SAMPLE(?p) as ?sampleitem)
      WHERE
      {
        ?p wdt:P734 ?item
      }
      GROUP BY ?item
      ORDER BY DESC(?ct)
      LIMIT 4999
    }
    MINUS { ?item wdt:P373 [] }
    ?item wdt:P282 wd:Q8229 
    OPTIONAL { [] schema:about ?item ; schema:isPartOf <https://commons.wikimedia.org/> ; schema:name ?title  }          
  }
  ORDER BY DESC(?ct) ASC(?item)