query: #title: People with same parents should be siblings
  # Complex constraint from [[Property talk:P3373]]
  # Two people who share the same parents, should be siblings by definition. For half-siblings, we could do a similar report.
  SELECT DISTINCT ?item ?item2 WHERE {
    ?item wdt:P31 wd:Q5.
    ?item2 wdt:P31 wd:Q5.
    ?item wdt:P25/^wdt:P25 ?item2.
    ?item wdt:P22/^wdt:P22 ?item2.
     
    FILTER(?item != ?item2)  
    
    MINUS { ?item wdt:P3373 ?item2. }
    MINUS { ?item2 wdt:P3373 ?item. }
    MINUS { ?item wdt:P460 ?item2. }
  }
  LIMIT 10000