query: #title: Missing P106
  # Complex constraint from [[Property talk:P3973]]
  #
  SELECT ?item {
  	?item wdt:P3973 [].
    ?item wdt:P31 wd:Q5.
  	FILTER NOT EXISTS { ?item p:P106 [] }
  	FILTER NOT EXISTS { ?item p:P39 [] }
  	FILTER NOT EXISTS { ?item p:P97 [] }
  	FILTER NOT EXISTS { ?item p:P4638 [] }
  	FILTER NOT EXISTS { ?item p:P166 [] }
  	FILTER NOT EXISTS { ?item p:P18 [] }
  	FILTER NOT EXISTS { ?item p:P1442 [] }
  	FILTER NOT EXISTS { ?item p:P140[] }
  	FILTER NOT EXISTS { ?item p:P569 [] }
  }