Information: - The Sui Dynasty was a short-lived imperial dynasty of China of pivotal significance. The Sui unified the Northern and Southern dynasties and reinstalled the rule of ethnic Han Chinese in the entire China proper, along with sinicization of former nomadic ethnic minorities within its territory. It was succeeded by the Tang dynasty, which largely inherited its foundation. - JUSTICE is a human rights and law reform organisation based in the United Kingdom. It is the British section of the International Commission of Jurists, the international human rights organisation of lawyers devoted to the legal protection of human rights worldwide. Consequently, members of JUSTICE are predominantly barristers and solicitors, judges, legal academics, and law students. - China, officially the People's Republic of China (PRC), is a unitary sovereign state in East Asia. With a population of over 1.381billion, it is the world's most populous country. The state is governed by the Communist Party of China, and its capital is Beijing. It exercises jurisdiction over 22 provinces, five autonomous regions, four direct-controlled municipalities (Beijing, Tianjin, Shanghai, and Chongqing), and two mostly self-governing special administrative regions (Hong Kong and Macau), and claims sovereignty over Taiwan. The country's major urban areas include Shanghai, Guangzhou, Beijing, Chongqing, Shenzhen, Tianjin and Hong Kong. China is a great power and a major regional power within Asia, and has been characterized as a potential superpower. - Yang Xiu ( ) ( died 618 ) was an imperial prince of the Chinese dynasty Sui Dynasty . He was a son of Emperor Wen and his wife Empress Dugu , and during most of his father 's reign was given great control over the modern Sichuan and Chongqing region . In 602 , after accusations were made that Yang Xiu was abusing his power , Emperor Wen removed him from power and reduced him to commoner rank . He was subsequently held under house arrest for the rest of Emperor Wen 's reign and the reign of his brother Emperor Yang . In 618 , after the general Yuwen Huaji killed Emperor Yang , he and his coconspirators briefly considered declaring Yang Xiu emperor , but ultimately decided not to , and instead executed Yang Xiu and his sons . - Chongqing, formerly transliterated as Chungking, is a major city in Southwest China and one of the Five national central cities in China. Administratively, it is one of China's four direct-controlled municipalities (the other three are Beijing, Shanghai and Tianjin), and the only such municipality in inland China. - Travel is the movement of people between relatively distant geographical locations, and can involve travel by foot, bicycle, automobile, train, boat, airplane, or other means, with or without luggage, and can be one way or round trip. Travel can also include relatively short stays between successive movements. - Emperor Yang of Sui (, 569 April 11, 618), personal name Yang Guang (), alternative name Ying (), nickname Amo (), known as Emperor Ming () during the brief reign of his grandson Yang Tong), was the second son of Emperor Wen of Sui, and the second emperor of China's Sui dynasty. - Yuwen Huaji (died 619) was a general of the Chinese Sui Dynasty who, in 618, led a coup against Emperor Yang of Sui, killing him. He subsequently declared Emperor Yang's nephew Yang Hao emperor and led Emperor Yang's elite Xiaoguo Army () north, but was then repeatedly defeated by Li Mi, Li Shentong (), and finally Dou Jiande. Believing that his defeat was near and wanting to be emperor before his ultimate defeat, he poisoned Yang Hao and declared himself the emperor of a Xu state. Dou captured him in 619 and killed him. - In justice and law, house arrest (also called home confinement, home detention, or electronic monitoring) is a measure by which a person is confined by the authorities to a certain residence. Travel is usually restricted, if allowed at all. House arrest is an alternative to prison time or juvenile-detention time. - Dou Jiande (573 August 3, 621) was a leader of the agrarian rebels who rose against the rule of Emperor Yang of Sui near the end of the Chinese Sui dynasty. Generally considered the kindest and most able of the agrarian rebel leaders of the time, he was eventually able to capture the modern Hebei region and declare himself initially the Prince of Changle, and then the Prince of Xia. In 621, when the Tang dynasty general Li Shimin (later Emperor Taizong) attacked Wang Shichong the Emperor of Zheng, who ruled the modern Henan region, Dou believed that if Tang were able to destroy Zheng, his own Xia state would suffer the same fate, and therefore went to Wang's aid, against the advice of his strategist Ling Jing () and his wife Empress Cao. Li defeated him at the Battle of Hulao, capturing him. Li's father Emperor Gaozu of Tang subsequently put Dou to death. Xia territory was briefly seized by Tang, but soon Dou's general Liu Heita rose against Tang rule, recapturing Dou's territory, and held out against Tang until 623. What entity does 'yang xiu ' has the relation 'father' with?
Answer:
emperor wen of sui