question: Which Chinese city is the capital of the Jiangsu province, Nanjing or Pu'er City
answer: Nanjing
context: Title: Nanjing
  Passage: Nanjing (  ), formerly romanized as Nanking and Nankin, is a city situated in the heartland of the lower Yangtze River region in China, which has long been a major centre of culture, education, research, politics, economy, transport networks and tourism.  It is the capital city of Jiangsu province of People's Republic of China and the second largest city in the east China region, with an area of 6600 km2 and a total population of 10,230,000.  The inner area of Nanjing enclosed by the city wall is Nanjing City (南京城), with an area of 55 km, while the Nanjing Metropolitan Region includes surrounding cities and areas, covering over 60 thousand square kilometres, with a population of over 30 million.
  Title: Wuxi No.1 High School
  Passage: Wuxi No.1 High School () is located in Wuxi, Jiangsu Province, People's Republic of China (PRC).  The school was built up in 1911 and famous for the high-quality education.It was called'Five Charming Roses among the High Schools in Jiangsu' with other four school which was High School Affiliated to Nanjing Normal University，Suzhou High School, Nantong Middle School of Jiangsu Province and Changzhou High School. Wuxi No.1 High School is the seventh best school in Jiangsu Province(The data from Chinese National Higher Education Entrance Examination).  The gist of Wuxi No.1 High School is to let students enjoy the school, encourage students to create new things and learn from playing.The principal of Wuxi No.1 High School now is Zhou Jingzhong.
  Title: Pu'er City
  Passage: Pu'er () is a prefecture-level city in southern Yunnan Province, China.  The name Pu'er dates back to 1729, but was changed to Simao () in 1950 after the Communist Revolution.  In 2007, the original name of Pu'er was restored.  This change had an effect on the size of the official Pu'er tea production area, a major regional product.  The urban administrative center of Pu'er is Simao District, which is also the former name of the prefecture-level city itself.  A major downturn in the price of tea in 2007 caused severe economic distress in the area.  The price of Pu'er has since recovered and Pu'er tea still contributes much to the income of the area.
  Title: Jiangcheng Hani and Yi Autonomous County
  Passage: Jiangcheng Hani and Yi Autonomous County () is an autonomous county under the jurisdiction of Pu'er City, in southern Yunnan, China, bordering Laos and Vietnam to the south, making it the only county in the province to border more than one country.  By road, its seat, the town of Menglie (勐烈镇 ), is 520 km from Kunming and 145 km from Simao District, the municipal seat of Pu'er.
citations: Nanjing Pu'er City