query: SELECT DISTINCT ?item WHERE {
    hint:Query hint:optimizer "None".
    ?item (wdt:P131/wdt:P131) wd:Q12740.
    { ?item (wdt:P31/(wdt:P279*)) wd:Q879050. }
    UNION
    { ?item (wdt:P31/(wdt:P279*)) wd:Q751876. }
    UNION
    { ?item (wdt:P31/(wdt:P279*)) wd:Q23413. }
  }