query: #title: No instance or subclass
  # Complex constraint from [[Property talk:P2163]]
  # Items with this property, but both [[Property:P31|instance of&#32;<small dir="ltr">(P31)</small>]] and [[Property:P279|subclass of&#32;<small dir="ltr">(P279)</small>]] are missing
  SELECT ?item {
    ?item wdt:P2163 [] .
    MINUS { ?item wdt:P31 [] }
    MINUS { ?item wdt:P279 [] }
  } LIMIT 1000