Task: Question Generation
Input (English): In most nations with constitutions modelled after the Soviet Union, the legislature was given the power of being the court of last resort. In the People's Republic of China, the final power to interpret the law is vested in the Standing Committee of the National People's Congress (NPCSC). This power includes the power to interpret the basic laws of Hong Kong and Macau, the constitutional documents of the two special administrative regions which are common law and Portuguese-based legal system jurisdictions respectively. This power is a legislative power and not a judicial one in that an interpretation by the NPCSC does not affect cases which have already been decided.
Output (English): Hong Kong's legal system was traditionally based on what?