Ulanqab or Wūlánchábù (Mongolian: ; Улаанцав хот, "Uláncaw hot"; ) is a region administered as a prefecture-level city in south-central Inner Mongolia, People's Republic of China.
 Its administrative centre is in Jining District, which was formerly a county-level city.
 It was established as a prefecture-level city on 1 December 2003, formed from the former Ulanqab League.
The Si River () is a watercourse located in Shandong Province and, in ancient time, in Jiangsu Province, China.
 It rises in the southern foothills of the Mengshan Mountains (蒙山) then flows through Sishui County, and the cities of Qufu and Yanzhou before emptying into Lake Nanyang (南阳湖).
 In ancient times the river was a large tributary of the Huai River, converging with the waters of the Fan (反), Sui (睢), Tong (潼) and Yi (沂) and numerous other rivers then passing through present day Yutai County, Pei County, Xuzhou City, Suqian City and Siyang County in Shandong and Jiangsu Provinces.
 At Sikou (泗口) (also known as Qingkou (清口), present day Huai'an City, Jiangsu), the Si River discharged into the Huai River.
 From very early on the Si River was connected with the Huai and Yangtze Rivers as well as the Central Plain of China for a long period in its history.
 In 1194, at the time of the Song and Jin Dynasties, the Yellow River altered its course southwards, engulfing the lower reaches of the Si River below Xuzhou City and those of the Huai River below Huai’an City.
 As a result, the Si River no longer exists in Jiangsu Province.
 In 1855, the Yellow River once more altered its course northwards.
 However, due to the large amount of silt carried by the river, it left behind a 4 to high layer of mud in the lower reaches of the Si River’s former course.
Gaoyou Lake（）is the sixth largest freshwater lake in China, it is located between Anhui Province and Jiangsu Province.
 In a sense Gaoyou Lake is a manmade lake, and its creation is part of a long story about flood control and hydraulic engineering in ancient China.
 Gaoyou Lake is now part of the Huai River system as the Huai River flows south through Gaoyou Lake on its way to the Yangtze River and the Pacific.
 It is about 39 km long and 30 km wide, covering approximately 674.7 km.
The North Jiangsu Main Irrigation Canal (, ) (often called the "Subei Canal") is located in the lower reaches of the Huai River, one of the major rivers of northern Jiangsu Province in eastern China.
 It originates at Gaoliangjian on Hongze Lake and runs through Hongze, Qingpu, Huai'an, Funing, Sheyang and Binghai county(or district) and joins the artificial estuary of Biandan Harbour.
 The canal is 168 km in length and can irrigate 1,720,000 hectares of farmland.
 The construction program was organized and directed by the headquarters of the Jiangsu Huai River management program between October 1951 and May 1952.
Huai'an Lianshui Airport (IATA: HIA, ICAO: ZSSH) is an airport serving the city of Huai'an in Jiangsu Province, China.
 It is located in the town of Chenshi in Lianshui County, 22 kilometers northeast of the city center.
 Construction of the airport started in October 2008 with a total investment of 800 million yuan, and commercial flights began in September 2010.
Hongort (Mongolian: comitative case of ""soft"" or ""darling"" , ) is a town (镇) of the Chahar Right Back Banner, which in turn is part of Ulanqab prefecture-level city in Inner Mongolia, China.
 It is located about 30 km northwest of Shangdu county.
 In 2000, when it was still classified as township (乡), it had 11860 inhabitants.
Huai'an (), formerly called Huaiyin () until 2001, is a prefecture-level city in central Jiangsu province of Eastern China.
 It borders Lianyungang, Suqian to the north, Yancheng to the northeast, Yangzhou to the southeast, and Chuzhou (Anhui) to the southwest.
The Huai River, formerly romanized as the Hwai, is a major river in China.
 It is located about midway between the Yellow River and Yangtze, the two largest rivers in China, and like them runs from west to east.
 Historically draining directly into the Yellow Sea, floods have changed the course of the river such that it is now a major tributary of the Yangtze.
 The Huai is notoriously vulnerable to flooding.
Ulanqab (Wulanchabu) Jining Airport (IATA: UCB, ICAO: ZBUC) is an airport located 10 km in the north of the city of Ulanqab in Inner Mongolia, China.
 The airport received approval from the State Council of China and the Central Military Commission on 31 July 2013.
 The airport was opened on 25 April 2016.
Shaobo Lake（）is a freshwater lake in Jiangsu Province, China, it is located between Gaoyou and Yangzhou.
 Shaobo Lake is a part of the Huai River system as the Huai River flows south through Shaobo Lake on its way to the Yangtze River like Gaoyou Lake.
 It is about 17 km long and 60 km wide, covering approximately 77 km.

Question: Are Huai'an and Ulanqab both located in China?
Answer: yes