What are names and savings balances of the three accounts with the highest savings balances?
return accounts ;return savings  balances of #1 ;return the  three highest of #2 ;return #1 where #2 is equal to any of #3 ;return names of #4 ;return savings  balances of #4 ;return #5 ,  #6
['select', 'project', 'aggregate', 'comparative', 'project', 'project', 'union']