Return the name, phone number and email address for the customer with the most 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']