Question: Datong and Jianyang, Sichuan, are located in which country?

full_context: Document 1: Tongliao: Tongliao (Mongolian: ; ) is a prefecture-level city in eastern Inner Mongolia, People's Republic of China. The area is 59,535 km² and population is 3,139,153 (as of 2010); the city proper has 898,895 inhabitants (2010). The city was the administrative centre of the defunct Jirem League (哲里木盟 ; ).
Document 2: Xinshi, Ziyang: Xinshi () is a town under the administration of Jianyang City in northern Sichuan, People's Republic of China, located about 6 to southeast of downtown Jianyang on the southern (right) bank of the Tuo River and is served by China National Highway 321. , it has one residential community (社区 ) and 34 villages under its administration.
Document 3: Taoyuan County: Taoyuan County () is under the administration of Changde, Hunan province, China. The Yuan River, a tributary of the Yangtze, flows through Taoyuan. It covers an area of 4441 square kilometers, of which 895 km2 is arable land. It is 229 km from Zhangjiang Town, the county seat, to Changsha, the capital city of Hunan province. The county occupies the southwestern corner of Changde City and borders the prefecture-level cities of Zhangjiajie to the northwest and Huaihua to the southwest.
Document 4: Jianyang, Sichuan: Jianyang () is a county-level city located in the Sichuan basin in Sichuan Province, in south central China. Situated only 48 kilometers south east of the city center of Chengdu, Jianyang is administratively under the jurisdiction of Chengdu since May 2016. The urban center is located on the banks of the Tuo River.
Document 5: Mianyang: Mianyang () is the second largest prefecture-level city of Sichuan province in Southwest China. Its population was 5.45 million in 2015 covering an area of 20281 km² consisting of Jiangyou, a county-level city, six counties and two urban districts. Its built-up ("or metro") area was home to 1,722,133 inhabitants including the city proper of Mianyang ("two urban districts") and An County largely being conurbated as urbanisation sprawls. In 2006, Mianyang was ranked as China's third "most suitable city for living" by "China Daily", after coastal cities Dalian and Xiamen., but it has since dropped out of the top 10.
Document 6: Chengdu Tianfu International Airport: Chengdu Tianfu International Airport () is an under-construction airport serving Chengdu, the capital of China's Sichuan province and a major air hub. The site of the airport has been chosen at Lujia, Jianyang, 51 km south-east of the center of Chengdu. It is also named after the Tianfu New Area, a development zone for Chengdu in which the airport is located (Tianfu translating as "Land of Abundance" in English). Construction began May 2016, complete in 2019 and due to be opened in 2020. This airport will operate as a second airport for Chengdu with Chengdu Shuangliu International Airport continuing to operate.
Document 7: Shaanxi: Shaanxi () is a province of the People's Republic of China. Officially part of the Northwest China region, it lies in central China, bordering the provinces of Shanxi (NE, E), Henan (E), Hubei (SE), Chongqing (S), Sichuan (SW), Gansu (W), Ningxia (NW), and Inner Mongolia (N). It covers an area of over 205,000 sqkm with about 37 million people. Xi'an—which includes the sites of the former Chinese capitals Fenghao and Chang'an—is the provincial capital. Xianyang, which served as the Qin capital, is located nearby. The other prefecture-level cities into which the province is divided are Ankang, Baoji, Hanzhong, Shangluo, Tongchuan, Weinan, Yan'an and Yulin.
Document 8: Jianyang Railway Station: The Jianyang Railway Station() is a railway station of Chengdu–Chongqing Railway. The station located in Jianyang, Ziyang, Sichuan, China.
Document 9: Chifeng: Chifeng (), also known as Ulankhad (Mongolian: (Улаанхад хот) "Ulaɣanqada qota" ] , "red cliff"), is a prefecture-level city in southeastern Inner Mongolia, People's Republic of China. It borders Xilin Gol League to the north and west, Tongliao to the northeast, Chaoyang (Liaoning) to the southeast, and Chengde (Hebei) to the south. The city has a total administrative area of 90,275 km² and has a population of 4,341,245 inhabitants. As of the 2010 census, 1,094,970 of those residents reside within in the urban districts of Hongshan, Yuanbaoshan and Songshan. However, a large part of Songshan is still rural and Yuanbaoshan is a de facto separate town 27 kilometers away from the core district of Chifeng. The city was the administrative center of the defunct Ju Ud League (; ).
Document 10: Jianyang Middle School: Sichuan Sheng Jianyang Middle School (Chinese四川省简阳中学;Pinyin: Sìchuān shěng jiǎnyáng zhōngxué ) is a school for middle level education located in Jianyang, Sichuan. The school which was founded in the year 1899 now has two campuses, with a large number of students over 10000 and 135 classes, on the two sides of Tuo River . It covers an area of 300 acres(about 0.2k㎡).
Document 11: Inner Mongolia: Inner Mongolia (Mongolian: "Öbür Monggol" in Mongolian script; ), officially the Inner Mongolia Autonomous Region or Nei Mongol Autonomous Region, is an autonomous region of the People's Republic of China, located in the north of the country, containing most of China's border with Mongolia (the rest of the China-Mongolia border is taken up by the Xinjiang autonomous region and Gansu province) and a small section of the border with Russia. Its capital is Hohhot, and other major cities include Baotou, Chifeng, and Ordos.
Document 12: Yongchuan District: Yongchuan () is a district of Chongqing, China, located by the north side of upper reach of Yangtze River, with a history of 1200 years. Yongchuan is 63 km away from Yuzhong of Chongqing city and 276 km from Chengdu.
Document 13: Lüliang: Lüliang or Lyuliang () is a prefecture-level city in the west of Shanxi province, People's Republic of China, bordering Shaanxi province across the Yellow River to the west, Jinzhong and the provincial capital of Taiyuan to the east, Linfen to the south, and Xinzhou to the north. It has a total area of 21143 km2 and total population of 3,727,057. The metro area of Lüliang has a population of 320,142 at the 2010 census.
Document 14: Datong: Datong () is a prefecture-level city in northern Shanxi province, People's Republic of China, located in a basin at an elevation of 1040 m and bordering Inner Mongolia to the north and west and Hebei to the east. It had a population of 3,318,057 at the 2010 census of whom 1,629,035 lived in the built up area made of 3 out of 4 urban districts, namely Chengqu, Kuangqu and Nanjiao District.
Document 15: Handan: Handan () is a prefecture-level city located in the southwestern part of Hebei province, China. It borders Xingtai on the north, and the provinces of Shanxi on the west, Henan on the south and Shandong on the east. At the 2010 census, its population was 9,174,683 inhabitants whom 2,845,790 lived in the built-up ("or metro") area made of 3 urban districts, Handan and Yangyan counties, and Shahe City in Xintai municipality, largely being conurbated now.
ground_truth: People's Republic of China