query: #title: In the Museum without a link
  # Complex constraint from [[Property talk:P4684]]
  # Items that have [[Property:P195|collection&#32;<small dir="ltr">(P195)</small>]] -> [[d:Q1464509|National Gallery of Victoria <small>(Q1464509)</small>]], but that don't have a [[Property:P4684|National Gallery of Victoria artwork ID&#32;<small dir="ltr">(P4684)</small>]] link
  SELECT ?item  WHERE {
    ?item wdt:P195 wd:Q1464509 .
    MINUS { ?item wdt:P4684 [] } .
  }  LIMIT 500