Show the countries that have managers of age above 50 or below 46.
return countries ;return managers of  #1 ;return ages of  #2 ;return #1 where #3 is  higher than 50 ;return #1 where #3 is  lower than 46 ;return #4 or  #5
['select', 'project', 'project', 'comparative', 'comparative', 'union']