Question: Are Gaoyou and Arxan both located in China?

Context paragraphs:
Arxan Yi'ershi Airport: Arxan (or A'ershan) Yi'ershi Airport (IATA: YIE, ICAO: ZBES) is an airport serving the city of Arxan (A'ershan) in the Hinggan League of Inner Mongolia Autonomous Region, China.  It is located near the town of Yi'ershi, 16.5 kilometers north of the city center.  Construction started in September 2008 with a total investment of 303 million yuan, and the airport was opened on 28 August 2011.

Gaoyou: Gaoyou (), is a county-level city under the administration of Yangzhou, Jiangsu province, China, located in the Yangtze River Delta on the north side of the Yangtze River.

Shaobo Lake: 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.

Yucheng Postal Stop: Yucheng Postal Stop ( ), also called Yucheng Post is located in the Postal Lane outside the South Gate of Gaoyou, Jiangsu, China, west of the Grand Canal.  It is currently the largest, and most completely preserved, ancient courier station in China, where couriers changed horses and rested.  The stop has been listed in the fourth group of National Key Cultural Relics Protection Units since 1996.

Arxan: Arxan (; Mongolian: "Arxaan hôt" or Рашаан хот; literally "spring" or "spa") is a county-level city of northeastern Inner Mongolia, People's Republic of China.  It is under the administration of Hinggan League.

Gaoyou Lake: 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.

Supporting paragraphs: Gaoyou Arxan
Answer: no