Question: What was the former name of the city where Jianggan District is located?

full_context: Document 1: SF Airlines: SF Airlines () is a Chinese cargo airline owned by SF Express (Group) Co. The company is headquartered in the No.1 Freight Depot of the International Shipping Center of Bao'an International Airport in Bao'an District, Shenzhen, Guangdong province.
Document 2: Jade Cargo International: Jade Cargo International was a cargo airline with its headquarters on the sixth floor of the Shenzhen Airlines Flight Operations Building at Shenzhen Bao'an International Airport, Bao'an District, Shenzhen, Guangdong, China. It operated regular cargo services to Asia, Europe, South East Asia and the Middle East, plus a host of other worldwide destinations. It main base was Shenzhen Bao'an International Airport.
Document 3: Jetconnect: Jetconnect Ltd. is a wholly owned subsidiary of Qantas that is based in Auckland, New Zealand. Originally established in July 2002 commencing operations in October the same year as a New Zealand based Airline. Jetconnect operated domestic services within New Zealand until these services were taken over by Jetstar Airways, another Qantas Group airline, on 10 June 2009. Jetconnect then operated Trans-Tasman services between New Zealand and Australia under the Qantas brand employing New Zealand based Flight Attendants and Pilots. In 2018 Jetconnect transferred its fleet of Boeing 737 Aircraft to the Qantas fleet and although it ceased to operate as an Airline in its own right, Jetconnect now employs Cabin Crew and Pilots to operate Tasman services for Qantas. Jetconnect head office is based at the Auckland Airport with another Cabin Crew and Pilot base in Wellington.
Document 4: Zhejiang Airlines: Zhejiang Airlines () was an airline based in Jianqiao Airport in Hangzhou, Zhejiang, China. The airline was wholly owned by China National Aviation Holding. During 2004, as part of a consolidation of the Chinese aviation industry, Air China absorbed Zhejiang Airlines when CNAC was merged into Air China.
Document 5: Nanjing: Being one of the four ancient capitals of China, Nanjing has always been a cultural centre attracting intellectuals from all over the country. In the Tang and Song dynasties, Nanjing was a place where poets gathered and composed poems reminiscent of its luxurious past; during the Ming and Qing dynasties, the city was the official imperial examination centre (Jiangnan Examination Hall) for the Jiangnan region, again acting as a hub where different thoughts and opinions converged and thrived.
Document 6: Zhejiang: The rapid development of religions in Zhejiang has driven the local committee of ethnic and religious affairs to enact measures to rationalise them in 2014, variously named "Three Rectifications and One Demolition" operations or "Special Treatment Work on Illegally Constructed Sites of Religious and Folk Religion Activities" according to the locality. These regulations have led to cases of demolition of churches and folk religion temples, or the removal of crosses from churches' roofs and spires. An exemplary case was that of the Sanjiang Church.
Document 7: China's Wings: China's Wings: War, Intrigue, Romance and Adventure in the Middle Kingdom during the Golden Age of Flight is a 2012 book by Gregory Crouch, published by Bantam Books. The book discusses the history of the China National Aviation Corporation (CNAC) and is focused on William Langhorne Bond as the central character. Harry Eagar of the "Maui News" stated that "is largely a biography of Bond." The book also describes Moon Fun Chin, a Chinese-American who rose from peasant roots, to become a lead CNAC pilot and finally to owning his own airline. Among other events, the book discusses the establishment of the first airline in China, the Second Sino-Japanese War, "The Hump" airlift, and the 1938 Kweilin incident. The book ends after the 1949 Communist takeover.
Document 8: Nanjing: The city of Nanjing was razed after the Sui dynasty took over it. It renamed Shengzhou (昇州) in Tang dynasty and resuscitated during the late Tang. It was chosen as the capital and called Jinling (金陵) during the Southern Tang (937–976), a state that succeeded Wu state. It renamed Jiangning (江寧) in Northern Song dynasty and renamed Jiankang in Southern Song dynasty. Jiankang's textile industry burgeoned and thrived during the Song dynasty despite the constant threat of foreign invasions from the north by the Jurchen-led Jin dynasty. The court of Da Chu, a short-lived puppet state established by the Jurchens, and the court of Song were once in the city. Song was eventually exterminated by the Mongol empire under the name Yuan and in Yuan dynasty the city's status as a hub of the textile industry was further consolidated.
Document 9: Zhejiang: The province's name derives from the Zhe River (浙江, Zhè Jiāng), the former name of the Qiantang River which flows past Hangzhou and whose mouth forms Hangzhou Bay. It is usually understood as meaning "Crooked" or "Bent River", from the meaning of Chinese 折, but is more likely a phono-semantic compound formed from adding 氵 (the "water" radical used for river names) to phonetic 折 (pinyin zhé but reconstructed Old Chinese *tet), preserving a proto-Wu name of the local Yue, similar to Yuhang, Kuaiji, and Jiang.
Document 10: Zhejiang: Zhejiang, as the heartland of the Jiangnan (Yangtze River Delta), remained the wealthiest area during the Six Dynasties (220 or 222–589), Sui, and Tang. After being incorporated into the Sui dynasty, its economic richness was used for the Sui dynasty's ambitions to expand north and south, particularly into Korea and Vietnam. The plan led the Sui dynasty to restore and expand the network which became the Grand Canal of China. The Canal regularly transported grains and resources from Zhejiang, through its metropolitan center Hangzhou (and its hinterland along both the Zhe River and the shores of Hangzhou Bay), and from Suzhou, and thence to the North China Plain. The débâcle of the Korean war led to Sui's overthrow by the Tang, who then presided over a centuries-long golden age for the country. Zhejiang was an important economic center of the empire's Jiangnan East Circuit and was considered particularly prosperous. Throughout the Tang dynasty, The Grand Canal had remained effective, transporting grains and material resources to North China plain and metropolitan centers of the empire. As the Tang Dynasty disintegrated, Zhejiang constituted most of the territory of the regional kingdom of Wuyue.
Document 11: Nanjing: During the period of North–South division, Nanjing remained the capital of the Southern dynasties for more than two and a half centuries. During this time, Nanjing was the international hub of East Asia. Based on historical documents, the city had 280,000 registered households. Assuming an average Nanjing household had about 5.1 people at that time, the city had more than 1.4 million residents.
Document 12: Nanjing: Since the Three Kingdoms period, Nanjing has been an industrial centre for textiles and minting owing to its strategic geographical location and convenient transportation. During the Ming dynasty, Nanjing's industry was further expanded, and the city became one of the most prosperous cities in China and the world. It led in textiles, minting, printing, shipbuilding and many other industries, and was the busiest business center in East Asia. Textiles boomed particularly in Qing dynasty, the industry created around 200 thousand jobs and there were about 50 thousand satin machines in the city in 18th and 19th century.
Document 13: Zhejiang: The province's name derives from the Zhe River (浙江, Zhè Jiāng), the former name of the Qiantang River which flows past Hangzhou and whose mouth forms Hangzhou Bay. It is usually glossed as meaning "Crooked" or "Bent River", from the meaning of Chinese 折, but is more likely a phono-semantic compound formed from adding 氵 (the "water" radical used for river names) to phonetic 折 (pinyin zhé but reconstructed Old Chinese *tet), preserving a proto-Wu name of the local Yue, similar to Yuhang, Kuaiji, and Jiang.
Document 14: Zhejiang: Despite the continuing prominence of Nanjing (then known as Jiankang), the settlement of Qiantang, the former name of Hangzhou, remained one of the three major metropolitan centers in the south to provide major tax revenue to the imperial centers in the north China. The other two centers in the south were Jiankang and Chengdu. In 589, Qiangtang was raised in status and renamed Hangzhou.
Document 15: Zhejiang: Valleys and plains are found along the coastline and rivers. The north of the province lies just south of the Yangtze Delta, and consists of plains around the cities of Hangzhou, Jiaxing, and Huzhou, where the Grand Canal of China enters from the northern border to end at Hangzhou. Another relatively flat area is found along the Qu River around the cities of Quzhou and Jinhua. Major rivers include the Qiangtang and Ou Rivers. Most rivers carve out valleys in the highlands, with plenty of rapids and other features associated with such topography. Well-known lakes include the West Lake of Hangzhou and the South Lake of Jiaxing.
ground_truth: Qiantang
sub_queries: Jianggan District >> located in the administrative territorial entity Answer: Hangzhou
What was the former name of Hangzhou ? Answer: Qiantang