How long is the total lesson time took by customer with first name as Rylan and last name as Goodwin?
return customers ;return first names of #1 ;return last names of #1 ;return #1 where #2 is  Rylan ;return #1 where #3 is  Goodwin ;return #1 in both #4 and #5 ;return lessons that  #6 took ;return times of #7 ;return sum of #8
['select', 'project', 'project', 'comparative', 'comparative', 'intersection', 'project', 'project', 'aggregate']