Question: Which city is more populous, Yumen City or Huixian?
Context: São Paulo ( ; ] ; "Saint Paul" in English) is a municipality in the southeast region of Brazil.  The metropolis is an alpha global city—as listed by the GaWC—and is the most populous city in Brazil and Americas as well as in the Southern Hemisphere.  The municipality is also the largest in the Americas and Earth's 12th largest city proper by population.  The city is the capital of the surrounding state of São Paulo, one of 26 constituent states of the republic.  It is the most populous and wealthiest city in Brazil.  It exerts strong international influences in commerce, finance, arts and entertainment.  The name of the city honors the Apostle, Saint Paul of Tarsus.  The city's metropolitan area of Greater São Paulo ranks as the most populous in Brazil, the 11th most populous on Earth, and largest Portuguese language-speaking city in the world. The Huixian Bronze Hu are a pair of bronze wine vessels that were found in the city of Huixian, Henan province, central China.  Dating to the Eastern Zhou dynasty, they have been part of the British Museum's Asian Collections since 1972. Austin ( , ) is the capital of the U.S. state of Texas and the seat of Travis County, with portions extending into Hays and Williamson counties.  It is the 11th-most populous city in the United States and the 4th most populous city in Texas.  It is the fastest growing large city in the United States and the second most populous state capital in the U.S after Phoenix, Arizona.  As of the U.S. Census Bureau's July 1, 2016 estimate, Austin has a population of 947,890.  Located in Central Texas in the foothills of Texas Hill Country, the city is home to numerous lakes, rivers, and waterways including Lady Bird Lake, Barton Springs, McKinney Falls, the Colorado River, Lake Travis, and Lake Walter E. Long.  It is the cultural and economic center of the Austin–Round Rock metropolitan area, which had an estimated population of 2,056,405 as of July 1, 2016.  It is the most populous state capital in the U.S that isn't the most populous city in a state. Huixian () is a city in Xinxiang, Henan, China.  The city has over 100,000 inhabitants. The Kang Hou "gui" () is a bronze vessel that is said to have been found near the city of Huixian, Henan province, central China.  Dating to the Western Zhou period, this ancient Chinese artefact is famous for its long inscription.  It has been part of the British Museum's Asian Collections since 1977. Yumen (, literally, "Jade Gate,") is a city in western Gansu province, China.  It is a county-level city with a population of 106,812 (2002 est.), and is part of Jiuquan "prefecture-level city" (a multi-county administrative unit).  It is located on the Silk Road and is best known for its oil production. Hui County or Huixian (Chinese: 徽县; Pinyin: Huī Xiàn) is a county under charge of Longnan City, Gansu Province, China.  The postal code is 742300. The city of Grand Junction is the home rule municipality that is the county seat and the most populous municipality of Mesa County, Colorado, United States.  The city has a council–manager form of government, and is the most populous municipality in all of western Colorado.  Grand Junction is situated 247 mi west-southwest of the Colorado State Capitol in Denver.  As of the 2010 census, the population of the city was 58,566.  Grand Junction is the 15th most populous city in the state of Colorado and the most populous city on the Colorado Western Slope.  Grand Junction serves as a major commercial and transportation hub within the large area between the Green River and the Continental Divide.  It is the principal city of the Grand Junction Metropolitan Statistical Area which had a population of 146,723 in 2010 census. The Gansu Wind Farm Project or Jiuquan Wind Power Base is a group of large wind farms under construction in western Gansu province in China.  The Gansu Wind Farm Project is located in desert areas near the city of Jiuquan in two localities of Guazhou County and also near Yumen City, in the northwest province of Gansu, which has an abundance of wind resources. Anakamacops (meaning "similar to "Kamacops"" in Greek) is a genus of dissorophid temnospondyl from the early Middle Permian of China.  It is known from a partial skull described in 1999 from the Dashankou locality of the Xidagou Formation, which is within the city of Yumen.  The type species was named "A. petrolicus" because Yumen is an oil-producing city (petrol).
Answer: Yumen