question: Who is the father-in-law of Empress Liu E?
context: [["Mohammad Ilyas (cricketer)", ["Mohammad Ilyas Mahmood( born March 19, 1946, Lahore, Punjab) is a former Pakistani cricketer who played in ten Tests from 1964 to 1969.", "He is the father- in- law of Imran Farhat."]], ["Ludwig von Westphalen", ["Johann Ludwig von Westphalen( 11 July 1770 \u2013 3 March 1842) was a liberal Prussian civil servant and the father- in- law of Karl Marx."]], ["John Adams (merchant)", ["John Adams( 1672 or 1673 \u2013 1745) was an American- born Canadian merchant and member of the Nova Scotia Council.", "He was the father- in- law of Henry Newton( politician)."]], ["Peter Burroughs", ["Peter Burroughs( born 27 January 1947) is a British television and film actor, the director of Willow Management.", "He is the father- in- law of actor and TV presenter Warwick Davis."]], ["James Armour (Master mason)", ["James Armour (15 January 1730 \u2013 20 September 1798) was a master mason and father of Jean Armour, and therefore the father-in-law of the poet Robert Burns."]], ["Empress Liu E", ["Empress Liu E (\u5289\u5a25) (died 314), courtesy name Lihua (\u9e97\u83ef),", "formally Empress Wuxuan (\u6b66\u5ba3\u7687\u540e, literally \"the martial and responsible empress\") was an empress of the Chinese/Xiongnu state Han Zhao.", "She was the third wife of Liu Cong (Emperor Zhaowu).", "Liu E was the daughter of one of Liu Cong's honored officials, Liu Yin (\u5289\u6bb7), who was described as someone who was willing to point out Liu Cong's faults, but only doing so in private, thus earning the temperamental and impulsive emperor's respect.", "She was initially taken as a concubine by him in 312, along with her sister Liu Ying (\u5289\u82f1) and four of her nieces.", "This move was opposed by Liu Cong's brother and crown prince Liu Ai (\u5289\u4e42), who argued it would be a violation of the prohibition against endogamy.", "Liu Cong, however, rationalized the move in that Liu Yin was ethnically Han, while he himself was ethnically Xiongnu, and therefore were not of the same ancestor.", "Liu E and her sister Liu Ying were both favored by Liu Cong.", "Initially, in 312, Liu Cong wanted to appoint Liu Ying empress to replace Empress Huyan, who died earlier that year, but at his mother Empress Dowager Zhang's insistence, he appointed another concubine, Zhang Huiguang empress instead.", "Liu Ying died soon thereafter.", "In 313, Empress Zhang died.", "Liu Cong appointed Liu E empress and wanted to build a palace for her.", "His minister Chen Yuanda (\u9673\u5143\u9054) tried to persuade him that it was overly wasteful, and Liu Cong, in anger, ordered Chen's execution.", "However, the new empress interceded, and Chen was spared and further promoted.", "For the next year, under Empress Liu's and Chen's advice, Liu Cong was said to have corrected his behavior to some extent.", "Empress Liu herself was described as intelligent and kind.", "However, she died in 314.", "It was said that from that point on, Liu Cong's palace would be thoroughly in a confused state, and Liu Cong's own personal behavior appeared to degenerate after this, without her counsel."]], ["Bill Dundee", ["William\" Bill\" Cruickshanks( born 24 October 1943) is a Scottish born- Australian professional wrestler and author better known by his stage name Bill Dundee.", "Cruickshanks is the father of Jamie Dundee and the father- in- law of wrestler Bobby Eaton."]], ["Ogawa Mataji", ["Viscount was a general in the early Imperial Japanese Army.", "He was also the father- in- law of Field Marshal Gen Sugiyama."]], ["Liu Cong (Han Zhao)", ["Liu Cong (died 318), courtesy name Xuanming, nickname Zai, formally Emperor Zhaowu of Han (Zhao), was an emperor of the Xiongnu state Han Zhao.", "He captured two subsequent Chinese emperors, and executed them back in Pingyang after forcing them to act as cupbearers.", "These raids finally forced the Chinese to move their capital from Luoyang to Nanjing.", "Liu Cong's reign was one filled with contradictions.", "He was a ruler who was obviously intelligent and capable of logical reasoning, and during his father Liu Yuan's reign, he was a capable general as well.", "On the other hand, as his reign progressed, he became increasingly cruel, unstable, extravagant, and unable to listen to proper advice.", "Toward the end of his reign, any official who dared to speak against his actions faced potential death.", "During his reign, both he and the Han Zhao state displayed great potential, as Han Zhao expanded from a small state occupying modern southern Shanxi to encompassing nearly all of modern Shanxi, Shaanxi, eastern Gansu, and significant portions of Shandong, Hebei, and Henan\u2014although the eastern half of the empire was under the control of the general Shi Le and arguably only nominally under Han Zhao's rule.", "Liu Cong and his state would never realize their potential."]], ["Barthold A. Butensch\u00f8n Sr.", ["Hans Barthold Andresen Butensch\u00f8n( 27 December 1877 \u2013 28 November 1971) was a Norwegian businessperson.", "He was born in Kristiania as a son of Nils August Andresen Butensch\u00f8n and Hanna Butensch\u00f8n, and grandson of Nicolay Andresen.", "Together with Mabel Anette Plahte( 1877 \u2013 1973, a daughter of Frithjof M. Plahte) he had the son Hans Barthold Andresen Butensch\u00f8n Jr. and was through him the father- in- law of Ragnhild Butensch\u00f8n and grandfather of Peter Butensch\u00f8n.", "Through his daughter Marie Claudine he was the father- in- law of Joakim Lehmkuhl, through his daughter Mabel Anette he was the father- in- law of Harald Astrup( a son of Sigurd Astrup) and through his daughter Nini Augusta he was the father- in- law of Ernst Torp.", "He took commerce school and agricultural school.", "He was hired in the family company N. A. Andresen& Co, and became a co-owner in 1910.", "He eventually became chief executive officer.", "The bank changed its name to Andresens Bank in 1913 and merged with Bergens Kreditbank in 1920.", "The merger was dissolved later in the 1920s.", "He was also a landowner, owning Nedre Sk\u00f8yen farm and a lot of land in Enebakk.", "He chaired the board of Nydalens Compagnie from 1926, having not been a board member before that.", "He also chaired the supervisory council of Forsikringsselskapet Viking and Nedre Glommen salgsforening, and was a supervisory council member of Filharmonisk Selskap.", "He was a member of the gentlemen's club SK Fram since 1890, and was proclaimed a lifetime member in 1964.", "He was buried in Enebakk."]]]
supporting_facts: [["Empress Liu E", 2], ["Liu Cong (Han Zhao)", 4]]
evidences: [["Empress Liu E", "spouse", "Liu Cong"], ["Liu Cong", "father", "Liu Yuan"]]
answer: Liu Yuan