query: #title: Not having P1454
  # Complex constraint from [[Property talk:P1616]]
  #
  SELECT DISTINCT ?item
  WHERE
  {
     ?item wdt:P1616 ?value .
     FILTER NOT EXISTS { ?item wdt:P1454 [] }
     MINUS {
       VALUES ?classes { wd:Q3917681 wd:Q484170 wd:Q18821702 wd:Q21869758 wd:Q423785 wd:Q192350 wd:Q3591564 wd:Q375928 wd:Q11204 wd:Q1641572 } .
       ?item wdt:P31/wdt:P279* ?classes.
     }
  } ORDER BY ?item