What is the total revenue of all companies whose main office is at Tokyo or Taiwan?
return companies ;return main offices office #1 ;return #1 where #2 is  in Tokyo ;return #1 where #2 is  in Taiwan ;return #3 or  #4 ;return revenues of #5 ;return sum of #6
['select', 'project', 'comparative', 'comparative', 'union', 'project', 'aggregate']