query: #title: Items with this property should also have either P31 or P279
  # Complex constraint from [[Property talk:P910]]
  # many lack this (below results are limited to 1000)
  SELECT DISTINCT ?item ?value {
  	{
  		SELECT ?item ?value {
  			?item wdt:P910 ?value .
  			MINUS { ?item wdt:P31 [] } .
  			MINUS { ?item wdt:P279 [] } .
  		} ORDER BY RAND() LIMIT 1000
  	} .
  }