What are the names of the districts that have both mall and village store style shops?
return districts ;return shops of #1 ;return styles of #2 ;return #1 where #3 is mall ;return #1 where #3 is village store ;return #1 in  both #4 and  #5 ;return names of #6
['select', 'project', 'project', 'comparative', 'comparative', 'intersection', 'project']