query: #title: Related characters do not share fictional universes
  # Complex constraint from [[Property talk:P1080]]
  # Fictional character, with a P1080 statement, that has a relationship to another character that does not share any P1080 value.
  SELECT ?item ?otherPerson WHERE {
    ?item wdt:P1080 [];
          wdt:P40 | wdt:P22 | wdt:P25 |
          wdt:P26 | wdt:P451 |
          wdt:P802 | wdt:P1066
          ?otherPerson .
    FILTER NOT EXISTS {
      [] ^wdt:P1080 ?item, ?otherPerson .
    }
  }