CREATE TABLE buildings (id DECIMAL, name TEXT, city TEXT, height DECIMAL, stories DECIMAL, status TEXT)
CREATE TABLE companies (id DECIMAL, name TEXT, headquarters TEXT, industry TEXT, sales_billion DECIMAL, profits_billion DECIMAL, assets_billion DECIMAL, market_value_billion TEXT)
CREATE TABLE office_locations (building_id DECIMAL, company_id DECIMAL, move_in_year DECIMAL)

Show the industries shared by companies whose headquarters are 'USA' and companies whose headquarters are 'China'.
SELECT industry FROM companies WHERE headquarters = "USA" INTERSECT SELECT industry FROM companies WHERE headquarters = "China"
SELECT "industry" FROM "companies" WHERE "USA" = "headquarters" INTERSECT SELECT "industry" FROM "companies" WHERE "China" = "headquarters"