Question: Are both Yan'an and Hunchun in the same Chinese province ?

full_context: Document 1: 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 2: Hoeryong: Hoeryŏng (] ) is a city in North Hamgyŏng Province, North Korea. It is located opposite Jilin Province, China, with the Tumen River in between. Sanhe (三合鎮), in Longjing City, is the closest Chinese town across the river. Hoeryŏng is claimed to be the birthplace of Kim Il Sung's first wife and Kim Jong Il's mother, Kim Jong Suk. It was known as "Kainei" during Japanese rule.
Document 3: Yan'an: Yan'an (, ; is a prefecture-level city in the Shanbei region of Shaanxi province, China, bordering Shanxi to the east and Gansu to the west. It administers several counties, including Zhidan (formerly Bao'an), which served as the headquarters of the Chinese Communists before the city of Yan'an proper took that role.
Document 4: Yanbian Korean Autonomous Prefecture: Yanbian (; Chinese Korean: 연변 , "Yeonbyeon") is an autonomous prefecture in northeastern Jilin Province, China. Yanbian is bordered to the north by Heilongjiang, on the west by Baishan and Jilin City, on the south by North Hamgyong Province of North Korea, and on the east by Primorsky Krai of Russia. Yanbian is designated as an autonomous prefecture due to the large number of ethnic Koreans living in the region. The prefectural capital is Yanji, and the total area is 42,700 km2 .
Document 5: Yulin, Shaanxi: Yulin () is a prefecture-level city in the Shanbei region of Shaanxi province, China, bordering Inner Mongolia to the north, Shanxi to the east, and Ningxia to the west. It has an administrative area of 43578 km2 and a population of 3,380,000.
Document 6: 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 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: Ankang: Ankang () is a prefecture-level city in southern Shaanxi Province in the People's Republic of China.
Document 9: Hunchun River: Hunchun River ( ), is a river located in the Yanbian Korean Autonomous Prefecture, in the Chinese province of Jilin. It is the tributary of the left bank of the Tumen River.
Document 10: Yanji: Yanji ("Yeon-gil" or "Yenji" in Korean, formerly romanized as Yenki) is a county-level city in the east of China's Jilin Province, and is the seat of the Yanbian Korean Autonomous Prefecture. Its population is approximately 400,000 of which a large portion is ethnic Korean. Yanji is a busy hub of transport and trade between China and North Korea.
Document 11: Hunchun: Hunchun is a county-level city in the Yanbian Korean Autonomous Prefecture, far eastern Jilin province, Northeast China. It borders North Korea (North Hamgyong province) and Russia (Primorsky Krai), has over 250,000 inhabitants, and covers 5,145 square kilometers. It was capital of Balhae/Bohai Kingdom between 785-793 as "Dongyang". The city's name Hunchun comes from the Manchu language meaning "borderland".
Document 12: Jilin–Hunchun Intercity Railway: Jilin–Hunchun Intercity Railway, also known as Ji-Hun Passenger Dedicated Line, is a high-speed railway in China's Jilin Province. It connects the provincial capital of Jilin City and the eastern provincial city of Hunchun near the border with Russia and North Korea. It will have a total length of 359 km of electrified double-track railways, built to the Grade 1 standard. Project construction started on October 30, 2010, with operations commencing on September 20, 2015. The railway has been described as "Dongbei's most beautiful railway" (due to the terrain it runs through) and "the fastest way to Vladivostok" (4 hours by train from Shenyang to Hunchun, plus 4 hours by bus from Hunchun to Vladivostok). Reflecting the border location of the city, the new train station has its sign in four languages: Chinese, Korean, Russian, and English. Future prospects could see the line extended into Russia to Vladivostok.
Document 13: Chang'an District, Xi'an: Chang'an District () is one of nine districts of Xi'an, the capital of Shaanxi province, China. It is the most spacious of the nine districts and third-largest out of all 13 county-level divisions of Xi'an, while it is also the second most-populous. The district borders the prefecture-level cities of Shangluo to the southeast and Ankang to the southwest, Weiyang and Yanta Districts to the north, Baqiao District to the northeast, Lantian County to the east, and Hu County to the west.
Document 14: Tumen, Jilin: Tumen is a county-level city in Yanbian Korean Autonomous Prefecture, eastern Jilin province, Northeast China. Of its 136,000 inhabitants, approximately 78,000 (or 57%) are of Korean descent. The two official languages are Chinese and Korean. Tumen is separated from Namyang of North Hamgyong province of North Korea by the Tumen River. Due to this proximity, many North Koreans escaping their country pass through Tumen. Tumen is also the location of a large detention center for captured North Koreans awaiting deportation. Tumen has two major food markets, the South Market and the North Market, where most of the residents purchase their food. Packaged foods and meats are usually sold inside the building, and vegetables are sold outside. There are six elementary schools, with three Korean schools, and three Chinese schools.
Document 15: 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.
ground_truth: no