question: Who is the paternal grandfather of Qiubo Of Han?
context: [["Ziyu (Han Clan)", ["Ziyu( Chinese: \u5b50\u8206; pinyin: H\u00e1n Z\u01d0y\u00fa), ancestral name J\u00ec( \u59ec), clan name H\u00e1n( \u97e9), personal name Y\u00fa( \u8206), and posthumously known as Ziyu of Han, was the fourth head of the House of Han.", "He was the son of Dingbo of Han.", "Ziyu was succeeded by his son Xianzi of Han."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Lyon Cohen", ["Lyon Cohen( 1868\u20131937) was a Polish- born Canadian businessman and a philanthropist.", "He was the grandfather of singer/ poet Leonard Cohen."]], ["Han Jian (Zhou dynasty)", ["Han Jian (Chinese: \u97e9\u7b80; pinyin: H\u00e1n D\u00ecng B\u00f3), ancestral name J\u00ec (\u59ec), clan name H\u00e1n (\u97e9), personal name Ji\u01cen (\u7b80), and posthumous name D\u00ecng (\u5b9a), was the third head of the House of Han.", "He was the son of Qiubo of Han.", "In 645 BC, Duke Mu of Qin invaded Jin at Han Jian's fief.", "Duke Hui of Jin asked Han Jian to scout the enemy.", "Han Jian reported that while the enemy had fewer men, their battle strength exceeds that of Jin.", "Duke Hui did not heed Han Jian's words and sent him to deliver the intent to battle.", "In the ensuing battle, Duke Hui and Han Jian were both captured and taken to Qin.", "Han Jian was succeeded by his son Ziyu of Han."]], ["Wuzi of Han (Spring and Autumn)", ["Wuzi of Han (Chinese: \u97e9\u6b66\u5b50; pinyin: H\u00e1n W\u01d4z\u01d0), ancestral name J\u00ec (\u59ec), clan name H\u00e1n (\u97e9)", ", personal name W\u00e0n (\u4e07), and posthumously known as Wuzi of Han, was the head of the House of Han.", "He was the son of Huan Shu of Quwo, half-brother of Zhuang Bo of Quwo, and the progenitor of Warring States period's State of Han.", "Han Wan was a charioteer for his nephew Duke Wu of Quwo and helped to kill Marquess Ai of Jin.", "Duke Wu of Quwo then took over the throne of Jin as Duke Wu of Jin, who then bestowed Han Wan the land of Han.", "Han Wan's descendants later adopted Han as the clan name.", "Han Wan's descendants became high-ranking officials in Jin.", "The family became very powerful and eventually led to the Partition of Jin."]], ["Qiubo of Han", ["Qiubo of Han", "(Chinese: \u97e9\u8d47\u4f2f; pinyin:", "H\u00e1n Qi\u00fa B\u00f3)", ", ancestral name", "J\u012b (\u59ec), clan name H\u00e1n (\u97e9), personal name unknown, and posthumously known as Qiubo of Han, was the second head of the House of Han.", "He was the son of Wuzi of Han.", "Qiubo was succeeded by his son Dingbo of Han."]], ["Fred Le Deux", ["Frederick\" Fred\" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).", "He is the grandfather of Tom Hawkins."]], ["Kaya Alp", ["Kaya Alp was, according to Ottoman tradition, the son of K\u0131z\u0131l Bu\u011fa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertu\u011frul, and the great grandfather of the Ottoman Empire founder, Osman I."]], ["Henry Krause", ["Henry J.\" Red\" Krause, Jr.( August 28, 1913 \u2013 February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.", "He played college football at St. Louis University.", "He is the grandfather of Jennifer Krause", "He is the great grandfather of Payton Hoeing"]]]
supporting_facts: [["Qiubo of Han", 5], ["Wuzi of Han (Spring and Autumn)", 2]]
evidences: [["Qiubo of Han", "father", "Wuzi of Han"], ["Wuzi of Han", "father", "Huan Shu of Quwo"]]
answer: Huan Shu of Quwo