Question: What do Yangchun and Zaoyang have in common?

full_context: Document 1: Xiangzhou District, Xiangyang: Xiangzhou District () is a district of the city of Xiangyang, Hubei, People's Republic of China. The district itself was formerly known as Xiangyang (襄阳区). It was a city famous for the Siege of Xiangyang (1267–1273) by invading forces of the Mongol-founded Yuan Dynasty. It was also an important city during the period of the Three Kingdoms, in the "Romance of the Three Kingdoms" it was said that it was nearby Xiangyang that Zhuge Liang received his three visits from Liu Bei. Xiangyang was also where Sun Jian fought Liu Biao in 191 AD during the Three Kingdoms. Today, Xiangzhou has been incorporated with nearby Fancheng to form the prefecture-level city of Xiangyang, part of Hubei province.
Document 2: Yanzhou District: Yanzhou (postal: Yenchow; ) is a district and former county-level city under the administration of Jining, in the southwest of Shandong province, People's Republic of China.
Document 3: Longchuan County, Guangdong: Longchuan County (postal: Lungchun; ) is a county of northeastern Guangdong province, China, bordering Jiangxi to the north and on the upper reaches of the Dong and Han Rivers. It is under the administration of Heyuan City, and in 2004 had a population of 870,000 living in an area of 3089 km2 . Bordering county-level divisions are Xingning and Wuhua County to the east, Heping County and Dongyuan County to the south and west, and in Jiangxi, Dingnan County and Xunwu County to the north.
Document 4: Shaoyang: Shaoyang () is a prefecture-level city in southwestern Hunan province, People's Republic of China, bordering Guangxi to the south. Shaoyang has a history of 2500 years and remains an important commercial and transportation city in Hunan. It has a city area and 8 suburban counties, with a population of 7.6 million, the largest in Hunan province.
Document 5: Guangchang County: Guangchang County lies in the municipal region of Fuzhou (抚州), Jiangxi. It is the southernmost and most remote of Fuzhou's ten counties, being bordered by counties in Ganzhou to the south and west and, to the east and over the watershed and provincial border, by Jianning and Ninghua Counties, Sanming, FJ. It is the birthplace of he second largest river in Jiangxi: Fuhe. This county built in the Southern Song Dynasty Shaoxing eight years (1138), because the rich white lotus, known as "the hometown of Chinese White Lotus." County has width of 45 km from west to east, 55 km long from north to south. The total area is 1612 square kilometers, with a population of 240,000 in 2003.
Document 6: Zhaoqing: Zhaoqing, formerly romanized as Shiuhing, is a prefecture-level city in Guangdong Province, China. During the 2010 census, its population was 3,918,467, with 1,232,462 living in the urbanized areas of Duanzhou District and Gaoyao County. The prefectural seat—excluding Seven Star Crags—is fairly flat, but thickly forested mountains lie just outside its limits. Numerous rice paddies and aquaculture ponds are found on the outskirts of the city. Sihui and the southern districts of the prefecture are considered part of the Pearl River Delta.
Document 7: Yong-Xun Yue: Yong–Xun (Jyutping: Jung cam, 邕潯方言), is a western branch of Yue Chinese spoken in some cities and towns in Guangxi province, including Nanning, Yongning, Guiping, Chongzuo, Ningmin, Hengzhou, Baise, etc. This branch originates from Guangfu Yue and is therefore close to Standard Cantonese. It also absorbed some phonemes and words from the local languages Pinghua and Zhuang.
Document 8: Zaoyang: Zaoyang () is a city in northern Hubei province, People's Republic of China, near the border with Henan province. Administratively, it is a county-level city under the administration of Xiangyang.
Document 9: Yangzhong: Yangzhong () is a county-level city under the administration of Zhenjiang, Jiangsu province, China. It is the easternmost county-level division of Zhenjiang City.
Document 10: Yangchun: Yangchun, formerly romanized as Yeungchun, is a county-level city in southwestern Guangdong, China, administered as a part of the prefecture-level city of Yangjiang. Yangchun has an area of 4,055 sqkm and had approximately 1.05 million inhabitants in 2003.
Document 11: Xiangyang: Xiangyang () is a prefecture-level city in northwestern Hubei province, People's Republic of China. It was known as Xiangfan () until December 2, 2010. Xiangyang is divided by the Han River, which runs through its heart and divides the city north-south. The city itself is an incorporation of two once separate, ancient cities: Fancheng and Xiangzhou. What remains of old Xianyang is located south of the Han River and contains one of the oldest still-intact city walls in China while Fancheng was located to the north of the Han River. Both cities served prominent historical roles in both the Ancient and Pre-Modern Periods of Chinese history. Today, the city is, after the capital Wuhan, the second largest in the province, located about halfway between Wuhan and Xi'an. It is considered one of the third tier cities in China and has been a target of government and private investment as the country seeks to urbanize and develop the interior provinces.
Document 12: Shayang County: Shayang () is a county of west-central Hubei province, People's Republic of China. Administratively, it is part of the prefecture-level city of Jingmen. The county is located south of the Jingmen city proper, west of the Han River, and north of the Chang Lake ("Chang Hu").
Document 13: Xiaogan: Xiaogan () is a prefecture-level city in east-central Hubei province, People's Republic of China, some 60 km northwest of the provincial capital of Wuhan. According to the 2010 census, its population totaled 4,814,542, of whom 908,266 lived in the built-up ("or metro") area of Xiaonan District.
Document 14: Yiyang: Yiyang () is a prefecture-level city on the Zi River in Hunan province, People's Republic of China, straddling Lake Dongting and bordering Hubei to the north. According to the 2010 Census, Yiyang has a population of 4,313,084 inhabitants residing in an area of 12,144 km2 . The previous census was in 2000 when it was recorded there were 4,309,143 inhabitants.
Document 15: Puyang: Puyang is a prefecture-level city in northeastern Henan province, People's Republic of China. Located on the northern shore of the Yellow River, it borders Anyang in the west, Xinxiang in the southwest, and the provinces of Shandong and Hebei in the east and north respectively.
ground_truth: county-level city