Question: In which country will you find the county-level city Gaozhou and the Jiangdu District which was formerly a county-level city?

full_context: Document 1: Meizhou: Meizhou is a prefecture-level city in eastern Guangdong province, China. It has an area of 15864.51 km² , and a population of 4.33 million at the 2010 census. It comprises Meijiang District, Meixian District, Xingning City and five counties. Its built-up or metro area made up of two districts was home to 935,516 inhabitants at the 2010 census.
Document 2: Ganyu District: Ganyu District () is under the administration of Lianyungang, Jiangsu province, China. It contains the province's northernmost point and is located along the Yellow Sea coast where the coastline takes a sharp turn toward the southeast, and borders the Shandong prefecture-level cities of Linyi and Rizhao to the north.
Document 3: Gaozhou: Gaozhou is a county-level city in southwestern Guangdong Province, China. Formerly the primary city in the area, it is now administered as part of the prefecture-level city of Maoming. At the time of the 2010 census, Gaozhou had a population of 1,288,665 living in its 3270.8 sqkm territory. The locals speak a variation of the Gaozhou dialect. It is best known in China for being the ancestral home of Leo Ku.
Document 4: 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 5: Danyang, Jiangsu: Danyang () is a county-level city under the administration of Zhenjiang, Jiangsu province, China. However, it is actually located about halfway between Zhenjiang and Changzhou (however it is closer to Zhenjiang), and is easier to reach from Zhenjiang than Changzhou. During the Southern Dynasties it was the home town of the royal families of both the Southern Qi and Liang Dynasties. As a result, many of the emperors and princes of these royal families were buried here in elaborate tombs. Nowadays it is better known for its production of optical lenses used in sunglasses and eyeglasses. In 2012 Danyang received a new railway station, the North Station (Bei Zhan), on the Shanghai to Beijing high-speed railway line, making it possible to travel between Danyang and Shanghai's Hongqiao Station in only one hour and 10 minutes. There is also a new train station for regular rail service located in the downtown city center. Danyang has a total area of 1,059 km and a population of roughly 890,000. Danyang locals speak a dialect of Wu Chinese, and the city is on the linguistic borderline between Wu Chinese and Jianghuai Mandarin.
Document 6: Gaomi: Gaomi () is a county-level city of eastern Shandong province, China, under the administration of Weifang City. It is the hometown of writer and 2012 Nobel Prize in Literature winner Mo Yan, who has set some of his stories in the region.
Document 7: Jiangnan: Jiangnan or Jiang Nan (; sometimes spelled Kiang-nan) is a geographic area in China referring to lands immediately to the south of the lower reaches of the Yangtze River, including the southern part of the Yangtze Delta. The region encompasses the Shanghai Municipality, the southern part of Jiangsu Province, the southern part of Anhui Province, the northern part of Jiangxi Province, and the northern part of Zhejiang Province. The most important cities in the area are Anqing, Nanjing, Zhenjiang, Changzhou, Wuxi, Suzhou, Shanghai, Hangzhou, Ningbo, and Shaoxing.
Document 8: Jiangdu District: Jiangdu District () is one of three districts of Yangzhou, Jiangsu province, China. It was a county-level city under the administration of Yangzhou until November 2011, when it was converted into a district.
Document 9: 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 10: Gaoyao District: Gaoyao, formerly romanized as Koyiu, is an urban district of Zhaoqing in western Guangdong, China. Population: 706,000.
Document 11: Chongzuo: Chóngzuǒ (; Zhuang: Cungzcoj ) is a prefecture-level city in the south of Guangxi Zhuang Autonomous Region along the Sino-Vietnamese border. It is home to one of China's largest Zhuang populations.
Document 12: Dongguan: Dongguan is a prefecture-level city in central Guangdong Province of South China. Often considered the cultural capital of the Pearl River Delta, Dongguan borders the provincial capital of Guangzhou to the north, Huizhou to the northeast, Shenzhen to the south, and the Pearl River to the west. It is part of the Pearl River Delta megacity with more than 44.78 million inhabitants at the 2010 census spread over nine municipalities (including Macao) across an area of 17,573 km2 . Dongguan's city administration is considered especially progressive in seeking foreign direct investment. Dongguan ranks behind only Shenzhen, Shanghai and Suzhou in exports among Chinese cities, with $65.54 billion in shipments. It is also home to one of the world's largest, though largely empty, shopping malls, the New South China Mall. The majority of the population speak Mandarin due to migrants from other parts of the country.
Document 13: Liyang: Liyang () is a county-level city under the administration of Changzhou in the Jiangsu province of the People's Republic of China. In 2011, it had a population of about 781,500. It borders the prefecture-level divisions of Wuxi to the east, Xuancheng (Anhui) to the south, and Nanjing to the west.
Document 14: Tongzhou District, Nantong: Tongzhou District (Chinese:  通州區 ,  通州区 ,  "Tōngzhōu Qū"), formerly Tongzhou City, is one of three urban districts of Nantong in eastern China's Jiangsu province. It was a county-level city under the administration of Nantong until 2010, when it became a district of Nantong. As of 2010, Tongzhou had a population of 1,246,400.
Document 15: Gao County: Gao County or Gaoxian is a county of Sichuan Province, China. It is under the administration of Yibin city.
ground_truth: China