What are the top 10 customers' first and last names by total number of orders and how many orders did they make?
return customers ;return the number of orders for each #1 ;return #1 where #2 are the top 10 ;return the first names of #3 ;return the last names of #3 ;return #4 , #5 ;return the total number of orders of #1 ;return #6 sorted by #7 ;return the number of orders for each #3 ;return #8 , #9
['select', 'group', 'comparative', 'project', 'project', 'union', 'project', 'sort', 'group', 'union']