query: #title: No preferred value
  # Complex constraint from [[Property talk:P1082]]
  # P1082 with multiple values none of which is preferred
  SELECT DISTINCT ?item {
    ?item wdt:P1082 [];
          p:P1082 ?statement;
          p:P1082 ?statement1 .
    FILTER( ?statement != ?statement1 ) .
    MINUS { ?item p:P1082/wikibase:rank wikibase:PreferredRank } .
  }