Which former British-dominated country has the highest retirement age as found in the Jewish Encyclopedia of Brockhaus and Efron?
select ?ent where { ?ent wdt:P31 wd:Q223832 . ?ent wdt:P3001 ?obj . ?ent wdt:P1343 wd:Q4173137 } ORDER BY DESC(?obj)LIMIT 5 
dominion of the british empire: Q223832 jewish encyclopedia of brockhaus and efron: Q4173137