Question: In what region of the country where Lam Thao is located is John Phan's birthplace?

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: Ho Chi Minh trail
Hồ Chí Minh Trail Southeastern Laos Ho Chi Minh Trail, 1967 Type Logistical system Site information Controlled by National Liberation Front Site history Built 1959 -- 1975 In use 1959 -- 1975 Battles / wars Operation Barrel Roll Operation Steel Tiger Operation Tiger Hound Operation Commando Hunt Cambodian Incursion Operation Lam Son 719 Ho Chi Minh Campaign Operation Left Jab Operation Honorable Dragon Operation Diamond Arrow Project Copper Operation Phiboonpol Operation Sayasila Operation Bedrock Operation Thao La Operation Black Lion Garrison information Past commanders Võ Bẩm Phan Trọng Tuệ Đồng Sỹ Nguyên Hoàng Thế Thiện Garrison 5,000 -- 60,000 [SEP] Knowledge 3: Lâm Thao District
Lâm Thao is a rural district of Phú Thọ Province in the Northeast region of Vietnam. As of 2003 the district had a population of 106,610. The district covers an area of 115 km². The district capital lies at Lâm Thao.
Knowledge 1: Lâm Thao District
Lâm Thao is a rural district of Phú Thọ Province in the Northeast region of Vietnam. As of 2003 the district had a population of 106,610. The district covers an area of 115 km². The district capital lies at Lâm Thao. [SEP] Knowledge 2: 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 3: Ho Chi Minh trail
Hồ Chí Minh Trail Southeastern Laos Ho Chi Minh Trail, 1967 Type Logistical system Site information Controlled by National Liberation Front Site history Built 1959 -- 1975 In use 1959 -- 1975 Battles / wars Operation Barrel Roll Operation Steel Tiger Operation Tiger Hound Operation Commando Hunt Cambodian Incursion Operation Lam Son 719 Ho Chi Minh Campaign Operation Left Jab Operation Honorable Dragon Operation Diamond Arrow Project Copper Operation Phiboonpol Operation Sayasila Operation Bedrock Operation Thao La Operation Black Lion Garrison information Past commanders Võ Bẩm Phan Trọng Tuệ Đồng Sỹ Nguyên Hoàng Thế Thiện Garrison 5,000 -- 60,000
Knowledge 1: Lâm Thao District
Lâm Thao is a rural district of Phú Thọ Province in the Northeast region of Vietnam. As of 2003 the district had a population of 106,610. The district covers an area of 115 km². The district capital lies at Lâm Thao. [SEP] Knowledge 2: 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 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