Context: Portuguese natives comprise a very small percentage of Guinea-Bissauans. After Guinea-Bissau gained independence, most of the Portuguese nationals left the country. The country has a tiny Chinese population. These include traders and merchants of mixed Portuguese and Chinese ancestry from Macau, a former Asian Portuguese colony.

Question: What natives comprise a very small percentage of the population?
Answer: Portuguese

Question: Who left the country after Guinea-Bissau gained independence?
Answer: Portuguese nationals

Question: What ethnic group has a tiny population in Guinea-Bissau?
Answer: Chinese

Question: What is the name of a former Asian Portuguese colony?
Answer: Macau

Question: What is the ancestry of the Chinese population in Guinea-Bissau?
Answer: mixed Portuguese and Chinese ancestry