What are the maximum and minimum sales of the companies whose industries are not "Banking".
return companies ;return industries of #1 ;return #1 where #2 is  Banking ;return #1 besides #3 ;return sales of #4 ;return the  highest #5 for each #4 ;return the  lowest #5 for each #4 ;return #6 ,  #7
['select', 'project', 'comparative', 'discard', 'project', 'group', 'group', 'union']