What are the first names and ids for customers who have two or more accounts?
return customers ;return accounts of  #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  at least two ;return first names of  #4 ;return ids of  #4 ;return #5 ,  #6
['select', 'project', 'group', 'comparative', 'project', 'project', 'union']