CREATE TABLE products (code DECIMAL, name TEXT, price DECIMAL, manufacturer DECIMAL)
CREATE TABLE manufacturers (code DECIMAL, name TEXT, headquarter TEXT, founder TEXT, revenue DECIMAL)

What is the total revenue of all companies whose main office is at Tokyo or Taiwan?
SELECT SUM(revenue) FROM manufacturers WHERE headquarter = 'Tokyo' OR headquarter = 'Taiwan'
SELECT SUM("revenue") FROM "manufacturers" WHERE "headquarter" = 'Taiwan' OR "headquarter" = 'Tokyo'