question: Which country Trịnh Thị Ngọc Trinh's husband is from?
context: [["Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Hoa", ["Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Hoa( born November 10, 1987 in Long An) is a Vietnamese indoor volleyball player.", "She is a former captain of the Vietnam women's national volleyball team."]], ["L\u00ea K\u00ednh T\u00f4ng", ["L\u00ea K\u00ednh T\u00f4ng", "(ch\u1eef H\u00e1n: \u9ece\u656c\u5b97, 1588\u20131619), also called L\u00ea Duy T\u00e2n (\u9ece\u7dad\u65b0)", "was the emperor of Viet Nam reigning from 1599 to 1619.", "He acted as a figurehead monarch while Lord Tr\u1ecbnh T\u00f9ng took full authority over the government and the army.", "In 1619, K\u00ednh T\u00f4ng cooperated with Tr\u1ecbnh Xu\u00e2n to make a plot to remove Tr\u1ecbnh T\u00f9ng from power.", "The plot failed and the emperor was killed."]], ["L\u00ea Ng\u1ecdc H\u00e2n", ["Princess L\u00ea Th\u1ecb Ng\u1ecdc H\u00e2n( 1770- 1799) was a Vietnamese princess and empress."]], ["Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Di\u1ec5m", ["Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Di\u1ec5m( 1721- 1784), posthumous name T\u1eeb Tr\u1ea1ch( \u6148\u6fa4), was a consort of lord Tr\u1ecbnh Doanh."]], ["\u0110\u1eb7ng Th\u1ecb Ng\u1ecdc H\u00e2n", ["\u0110\u1eb7ng Th\u1ecb Ng\u1ecdc H\u00e2n( born 16 July 1989 in Hanoi, Vietnam) is the winner of the 2010 Miss Vietnam.", "pageant that takes place in Tu\u1ea7n Ch\u00e2u, Qu\u1ea3ng Ninh on August 14, 2010."]], ["Tr\u1ecbnh Th\u1ecb B\u00edch Nh\u01b0", ["Tr\u1ecbnh Th\u1ecb B\u00edch Nh\u01b0( born 15 October 1985) is a Vietnamese female Paralympic swimmer.", "In the 2012 Summer Paralympics in London she competed in the Women's 100m Breaststroke- SB5."]], ["Tr\u1ea7n Th\u1ecb Ng\u1ecdc Anh", ["Tr\u1ea7n Th\u1ecb Ng\u1ecdc Anh( born 21 January 1958) is a Vietnamese sprinter.", "She competed in the women's 200 metres at the 1980 Summer Olympics."]], ["Tr\u1ecbnh Th\u1ecb Ng\u1ecdc Trinh", ["Tr\u1ecbnh Th\u1ecb Ng\u1ecdc Trinh  was a queen consort of Later L\u00ea dynasty.", "She was the wife of emperor", "L\u00ea K\u00ednh T\u00f4ng and mother of emperor", "L\u00ea Th\u1ea7n T\u00f4ng."]], ["Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Anh", ["Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Anh( born 23 February 1985) is a Vietnamese footballer who plays as a defender."]], ["Tr\u1ecbnh Th\u1ecb B\u00e9", ["Tr\u1ecbnh Th\u1ecb B\u00e9( born 3 September 1955) is a Vietnamese middle- distance runner.", "She competed in the women's 1500 metres at the 1980 Summer Olympics."]]]
supporting_facts: [["Tr\u1ecbnh Th\u1ecb Ng\u1ecdc Trinh", 2], ["L\u00ea K\u00ednh T\u00f4ng", 2]]
evidences: [["Tr\u1ecbnh Th\u1ecb Ng\u1ecdc Trinh", "spouse", "L\u00ea K\u00ednh T\u00f4ng"], ["L\u00ea K\u00ednh T\u00f4ng", "country of citizenship", "Viet Nam"]]
answer: Viet Nam