Question: Ezhou and Yangzhong are both cities in what country?

full_context: Document 1: 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 2: Ezhou: Ezhou () is a prefecture-level city in eastern Hubei Province, China. As of the 2010 census, the city had a population of 1,048,668, of which 668,727 lived in the core Echeng District. The Ezhou - Huanggang built-up ("or metro") area was home to 1,035,496 inhabitants from the Echeng and Huangzhou, Huanggang Districts.
Document 3: 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 4: Qidong, Jiangsu: Qidong is a county-level city under the administration of the prefecture-level city of Nantong in southeastern Jiangsu province, China. It is located on the north side of the Yangtze River opposite Shanghai and forms a peninsula jutting out into the East China Sea. It has a population of 1.12 million.
Document 5: Hongshan District, Wuhan: Hongshan District () forms part of the urban core of and is one of 13 districts of Wuhan, the capital of Hubei province, People's Republic of China. It is the most populous of all the districts, and is the most spacious but least densely populated among the city's seven core districts. On the right bank of the Yangtze, it borders the districts of Wuchang and Qingshan to the north; on the opposite bank it borders, from west to east, Caidian, Hanyang, Jiang'an, Huangpi, and Xinzhou. The district also borders the prefecture-level city of Ezhou.
Document 6: Yizheng: Yizheng () is a county-level city under the administration of Yangzhou, Jiangsu province, China, with a population of about 600,000 (2007). It borders the prefecture-level divisions of Chuzhou (Anhui) to the north and Nanjing to the west.
Document 7: 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 8: Echeng District: Echeng District () is one of the three administrative districts into which the prefecture-level city of Ezhou, China's Hubei province, is divided. The district is quite small, and includes Ezhou's main urban area (i.e., in informal terms, Ezhou "city proper") and its eastern and southern suburbs.
Document 9: Yancheng: Yancheng () is a prefecture-level city in northeastern Jiangsu province, People's Republic of China. As the city with the largest jurisdictional area in Jiangsu, Yancheng borders Lianyungang to the north, Huai'an to the west, Yangzhou and Taizhou to the southwest, Nantong to the south, and the Yellow Sea to the east.
Document 10: 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 11: 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 12: 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 13: Xinzhou District, Wuhan: Xinzhou () is one of the 13 districts of Wuhan, the capital of Hubei province, People's Republic of China, covering part of the city's northeastern suburbs and situated on the northern (left) bank of the Yangtze River. It is also the easternmost of Wuhan's districts. It borders the districts of Hongshan to the southwest and Huangpi to the west, as well as the prefecture-level cities of Huanggang to the north and east and Ezhou to the south.
Document 14: 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 15: Chuzhou: Chuzhou () is a prefecture-level city in eastern Anhui Province, China. It borders the provincial capital of Hefei to the southwest, Huainan to the west, Bengbu to the northwest, Chaohu to the south, and the province of Jiangsu to the east. According to the 2010 Census, the city of Chuzhou has a registered population of 3,937,868 inhabitants, whom 562,321 lived in the built-up ("or metro") area made of 2 urban districts. Nevertheless, 7,260,240 persons declared to be permanent residents.
ground_truth: China