What are the name, phone number and email address of the customer who made the largest number of orders?
return customers ;return orders of  #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  highest ;return name of  #4 ;return phone number of  #4 ;return email address of  #4 ;return #5 ,  #6 ,   #7
['select', 'project', 'group', 'superlative', 'project', 'aggregate', 'project', 'union']