What is the government salary of the Undersecretary with a Romanised name of Chen Wei-On, Kenneth?
CREATE TABLE "undersecretaries" (
  "romanised_name" text,
  "chinese_name" text,
  "age_at_appointment" real,
  "foreign_nationality" text,
  "portfolio_attachment" text,
  "govt_salary" text
);
SELECT "govt_salary" FROM "undersecretaries" WHERE "romanised_name"='chen wei-on, kenneth';