Question: Are Yanzhou District and Haidong in the same country?

full_context: Document 1: Heze: Heze () is a prefecture-level city in southwestern Shandong, China. It is home to 8,287,693 inhabitants, of whom 1,346,717 live in the built-up ("or metro") area comprising Mudan District. The westernmost prefecture-level city in Shandong, it borders Jining to the east and the provinces of Henan and Anhui to the west and south respectively. The old name of Heze was Caozhou (曹州 ; Cáozhōu) and now a part of the city bears this name. The first character in the city's name is sometimes incorrectly written as "荷 " instead.
Document 2: Roman Catholic Diocese of Yanzhou: The Roman Catholic Diocese of Yanzhou/Yenchow (Latin: "Ienceuven(sis)" , ) is a diocese located in the city of Yanzhou in the Ecclesiastical province of Jinan in China. The cathedral is now in the hands of the Patriotic Church of China.
Document 3: Haidong: Haidong (; Wylie: Haitung) is a prefecture-level city of Qinghai province in Western China. Its name literally means "east of the (Qinghai) Lake." On 8 February 2013 Haidong was upgraded from a prefecture () into a prefecture-level city. Haidong is the second largest city in Qinghai after Xining.
Document 4: Danzhou: Danzhou () is a prefecture-level city in the northwest of the Chinese island province of Hainan. Although called a "city", Danzhou administers a large area which was called Dan County or Danxian (儋县) until 1993. The administrative seat and urban center of Danzhou is Nada Town, which is often colloquially referred to as Danzhou city. Danzhou was upgraded from a county-level city into a prefecture-level city in February 2015.
Document 5: Qinghai Lake: Qinghai Lake (), Kokonor (Mongolian: Хөх нуур ) or Tso Ngonpo (Tibetan: མཚོ་སྔོན་པོ། ) is the largest lake in the People's Republic of China. Located in Qinghai province on an endorheic basin, Qinghai Lake is classified as a saline and alkaline lake. Qinghai Lake has a surface area of 4317 km2 ; an average depth of 21 m , and a maximum depth of 25.5 m as measured in 2008. The current Chinese name "Qinghai," the older Mongolian name "Kokonor", and the Tibetan name translate to "Green Sea", "Blue Lake" and "Teal Sea", respectively. Qinghai Lake is located about 100 km west of the provincial capital of Xining (Tib:Ziling ཟི་ལིང་།) at 3205 m above sea level in a hollow of the Tibetan plateau. Twenty-three rivers and streams empty into Qinghai Lake, most of them seasonal. Five permanent streams provide 80% of total influx.
Document 6: 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 7: Yanzhou–Shijiusuo Railway: The Yanzhou–Shijiusuo Railway or Yanshi Railway (), is a railroad in northern China between Yanzhou and Shijiusuo Station in Rizhao. The entire line, 307.9 km in length, is located in Shandong Province and was built from 1981 to 1985. The Yanshi Railway is a major conduit for the shipment of coal from Shanxi Province.
Document 8: Yan Prefecture (Shandong): Yanzhou or Yan Prefecture was a "zhou" (prefecture) in imperial China centering on modern Yanzhou District, Jining, Shandong, China. It existed (intermittently) until 1385, when the Ming dynasty created Yanzhou Prefecture.
Document 9: Dongfang, Hainan: Dōngfāng () is one of the seven county-level cities of Hainan province, China. Although called a "city", Dongfang refers to a large land area in Hainan - an area which was once a county. Within this area is the main city, Dongfang City. It is located on the western coast of Hainan Island facing Vietnam across the Gulf of Tonkin, and in 2004 had a population of 435,000.
Document 10: Hainan: Hainan is the smallest and southernmost province of China, consisting of various islands in the South China Sea. Hainan Island , separated from Guangdong's Leizhou Peninsula by the Qiongzhou Strait, is the largest island under PRC control (Taiwan, which is slightly larger, is also claimed but not controlled by the PRC) and makes up the majority of the province. The province has an area of 33920 km2 , with Hainan Island making up 32900 km2 (97%) and the rest divided among two hundred islands scattered across three archipelagos. It was administered as part of Guangdong until 1988, when it became a separate province; around the same time, it was made the largest Special Economic Zone established by Deng Xiaoping as part of the Opening Up of China. There are a total of ten major cities and ten counties in Hainan Province. Haikou on the northern coast of Hainan Island is the capital while Sanya is a well-known tourist destination on the southern coast. The other major cities are Wenchang, Qionghai, Wanning, Wuzhishan, Dongfang, and Danzhou.
Document 11: Daqing: Daqing (; formerly romanized as Taching) is a prefecture-level city in the west of Heilongjiang province, People's Republic of China. The name literally means "Great Celebration". Daqing is known as the Oil Capital of China and has experienced a phenomenal boom since oil was discovered at the Daqing Oil Field in 1959.
Document 12: Haiyang: Haiyang (), a coastal city in the peninsula province of Shandong in eastern China, is strategically located in the center of the prime tourist trio of Qingdao, Yantai, and Weihai.
Document 13: Yandian, Yanzhou: Yandian () is a town under the administration of Yanzhou City in southwestern Shandong province, China, located about 12 km west of downtown Yanzhou. , it has 66 villages under its administration.
Document 14: Wuhai: Wuhai (Mongolian: ; ) is a prefecture-level city and regional center in the Inner Mongolia Autonomous Region of the China, and is by area the smallest prefecture-level division of the region. It is located on the Yellow River between the Gobi and Ordos deserts. Wuhai became a single city occupying both banks of the Yellow River with the amalgamation on 1976 of left-bank (west) Uda (then administrated by Bayan Nuur League) together with Haibowan on the right (east) bank (then administrated by Ikh Juu league). Wuhai is one of very few cities with an antipode which is not only on land (as opposed to open ocean), but which is another inhabited city; the antipode of Wuhai is almost exactly on the city of Valdivia, Chile.
Document 15: Yankuang Group: Yankuang Group Company Limited, restructured from Yanzhou Mining Bureau, was established in 1976. It is the fourth largest coal mining state-owned enterprise in People's Republic of China. In 1999, Yanzhou Mining Bureau was renamed to Yankuang Group Company Limited. It is not only engaged in coal production and sales, coal chemicals, civil engineering, machinery manufacturing, transportation and electricity, but also garment business and trade. Its headquarters is located at Jining, Shandong.
ground_truth: yes