What is the customer first, last name and id with least number of accounts.
return customers ;return accounts of  #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  highest ;return first name of  #4 ;return last name of  #4 ;return id of  #4 ;return #5 ,  #6 ,   #7
['select', 'project', 'group', 'superlative', 'project', 'project', 'project', 'union']