Question: In what region of the country containing A Lưới is the birthplace of John Phan located?

Knowledge 1: John Phan
Bon "John" Phan (born October 10, 1974 in Da Nang, Vietnam) is a Vietnamese-American professional poker player based in Stockton, California who is a two time World Series of Poker bracelet winner and is a winner and four time final tablist of World Poker Tour Championships. [SEP] Knowledge 2: A Lưới District
A Lưới is a rural district of Thừa Thiên-Huế Province in the North Central Coast region of Vietnam. It is located west in the highly mountainous area of A Shau Valley bordering Laos. The population includes many Bru, Hoa and Tà Ôi people. As of 2003 the district had a population of 38,616. The district covers an area of 1,229 km² and its capital lies at A Lưới, a former French airfield, later used by the Americans in Operation Delaware and then by the North Vietnamese for courier flights. [SEP] Knowledge 3: South Central Coast
South Central Coast (Vietnamese: Duyên hải Nam Trung Bộ) is one of the regions of Vietnam. It consists of the independent municipality of Đà Nẵng and seven other provinces. The two southern provinces Ninh Thuận and Bình Thuận are sometimes seen as part of the Southeast region.The Paracel Islands (Hoàng Sa District), and Spratly Islands (Trường Sa District), are also part of this region.
Knowledge 1: John Phan
Bon "John" Phan (born October 10, 1974 in Da Nang, Vietnam) is a Vietnamese-American professional poker player based in Stockton, California who is a two time World Series of Poker bracelet winner and is a winner and four time final tablist of World Poker Tour Championships. [SEP] Knowledge 2: A Lưới District
A Lưới is a rural district of Thừa Thiên-Huế Province in the North Central Coast region of Vietnam. It is located west in the highly mountainous area of A Shau Valley bordering Laos. The population includes many Bru, Hoa and Tà Ôi people. As of 2003 the district had a population of 38,616. The district covers an area of 1,229 km² and its capital lies at A Lưới, a former French airfield, later used by the Americans in Operation Delaware and then by the North Vietnamese for courier flights. [SEP] Knowledge 3: Khong Island
Khong Island or Don Khong is the largest island and the seat of administration in the Si Phan Don riverine archipelago located in the Mekong River, Khong District, Champasak Province, southern Laos.
Knowledge 1: John Phan
Bon "John" Phan (born October 10, 1974 in Da Nang, Vietnam) is a Vietnamese-American professional poker player based in Stockton, California who is a two time World Series of Poker bracelet winner and is a winner and four time final tablist of World Poker Tour Championships. [SEP] Knowledge 2: A Lưới District
A Lưới is a rural district of Thừa Thiên-Huế Province in the North Central Coast region of Vietnam. It is located west in the highly mountainous area of A Shau Valley bordering Laos. The population includes many Bru, Hoa and Tà Ôi people. As of 2003 the district had a population of 38,616. The district covers an area of 1,229 km² and its capital lies at A Lưới, a former French airfield, later used by the Americans in Operation Delaware and then by the North Vietnamese for courier flights. [SEP] Knowledge 3: Nông Văn Vân
Nông Văn Vân (農文雲, ?–1835) was the leader of a peasant revolt in Vietnam from 1833-1835. Although the revolt is often seen as Nùng tribal separatism, historian Nguyễn Phan Quang argues that the revolt had national aspirations.

Answer: South Central Coast