query: SELECT ?item (sample(?object) as ?work)
    WITH {
    SELECT ?item WHERE {
    ?item wdt:P31 wd:Q5.
    ?item wdt:P6379 ?collection.
    FILTER NOT EXISTS {?item wdt:P7763 []}.  
    FILTER NOT EXISTS {?item wdt:P570 []}.  
    FILTER NOT EXISTS {?item wdt:P1317 []}.  
    FILTER NOT EXISTS {?item wdt:P800 []}.  
    } 
    } AS %results
    WHERE {
      INCLUDE %results.
    {?object wdt:P170 ?item.
    ?object wdt:P6216 wd:Q19652 .  
    ?object wdt:P571 ?creatiedatum.
     #TODO: GROUP by YEAR and filter on most recent date
    }#maker
  }
  GROUP BY ?item
  HAVING (count (?object) = 1)