Give the full name and customer id of the customer with the fewest accounts.
return customers ;return accounts of  #1 ;return number of #2 for each #1 ;return #1 where  #3 is  lowest ;return full name of  #4 ;return customer  id of  #4 ;return #5 ,   #6
['select', 'project', 'group', 'superlative', 'project', 'project', 'union']