Which industries have both companies with headquarter in "USA" and companies with headquarter in "China"?
return industries ;return companies of #1 ;return headquarters of #2 ;return #1 where #3 is in  USA ;return #1 where #3 is in  China ;return #1 in  both #4 and  #5
['select', 'project', 'project', 'comparative', 'comparative', 'intersection']