Find the minimum salary for the departments whose average salary is above the average payment of all instructors.
return instructors ;return payments of #1 ;return average of #2 ;return departments ;return salaries of #4 ;return average of #5 for each #4 ;return #4 where #6 is higher than #3 ;return minimum of #5 where #4 is equal to #7
['select', 'project', 'aggregate', 'select', 'project', 'group', 'comparative', 'None']