Question: Both Huangzhou District and Wanzhou District are located in what country?

Context paragraphs:
Wanzhou Wuqiao Airport: Wanzhou Wuqiao Airport (IATA: WXN, ICAO: ZUWX) is an airport serving Wanzhou District of Chongqing, China.  It is located 15 km from the centre of Wanzhou.  The airport was opened on 29 May 2003.

Shizhu Tujia Autonomous County: Shizhu Tujia Autonomous County, or Shizhu County for short(石柱土家族自治县 Pinyin: Shízhù Tǔjiāzú Zìzhìxiàn) is located in southeastern Chongqing, China.  It is south to Yangtze River, and neighboured to Pengshui County southernly, Fengdu County southwesternly, Zhong County northwesternly and Wanzhou District northernly, which are County-level divisions of Chongqing Municipality, and also to Lichuan CLC of Hubei Province easternly.  It's in the center zone of Three Gorges Reservoir Region, and the only autonomous county for ethnic minorities in this region.

Wanzhou (disambiguation): Wanzhou District is a district in Chongqing, China and the site of a former prefecture.

Liangping Airport: Liangping Airport () (IATA: LIA, ICAO: ZULP) , also called Wanzhou Liangping Airport, is a former dual-use military and civil airport, located west of Liangping (formerly called Liangshan) in Chongqing Municipality, China.  It served the city of Wanxian (now Wanzhou District) from July 1988 until May 2003, when all civil flights were transferred to the new Wanzhou Wuqiao Airport.

Huangzhou District: Huangzhou District () is a district of the city of Huanggang, Hubei province, People's Republic of China.

Wanzhou District: Wanzhou District () is a city on the upper reaches of the Three Gorges of the Yangtze River in China.  It is currently governed as a district of Chongqing Municipality, bordering Sichuan to the northwest and Hubei to the southeast.  It was formerly known as Wanxian or Wan County ().  Prior to Chongqing's formation as a direct-controlled municipality, Wanzhou was part of Sichuan province.  The urban core of Wanzhou is 228 km away from Chongqing's city proper.

Huang Prefecture: Huangzhou or Huang Prefecture was a "zhou" (prefecture) in imperial China, centering on modern Huangzhou District, Huanggang, Hubei, China.  It existed (intermittently) from 585 until 1279.

Wanzhou Sports Center: The Wanzhou Sports Center () is a sports venue in Wanzhou District, Chongqing, China, on the bank of the Yangtze River.  It has a multi-purpose stadium with a seating capacity of 26,000, and a natatorium with 1,650 seats.  Construction began in March 2010, and the center was opened in October 2012.

Second Wanzhou Yangtze River Bridge: The Second Wanzhou Yangtze River Bridge is a suspension bridge over the Yangtze River in Wanzhou District of Chongqing, China.  Completed in 2004, it has a main span of 580 m places it among the longest suspension spans in the world.

Luotian Railway Station: Luotian Station is a railway station located in Luotian Town, Wanzhou District, Chongqing Municipality, People's Republic of China, on the Yiwan Railway which operated by China Railway Corporation.

Supporting paragraphs: Huangzhou District Wanzhou District
Answer: China