question: Which city is located farther south in China, Lingwu or Changsha?
answer: Changsha
context: Title: Changsha
  Passage: Changsha (tsã13 sɔ33 sɿ21 ; ) is the capital of Hunan province, south central China.  It covers 11,819 km2 and is bordered by Yueyang and Yiyang to the north, Loudi to the west, Xiangtan and Zhuzhou to the south, Yichun and Pingxiang of Jiangxi province to the east.  According to 2010 Census, Changsha has 7,044,118 residents, constituting 10.72% of the province's population.
  Title: Lingwu
  Passage: Lingwu () is the most important industrial city of the Ningxia Hui Autonomous Region, in the northwestern region of the People's Republic of China.  It is under the jurisdiction of Yinchuan, the Region's capital city.
  Title: Changsha Jiandu Museum
  Passage: The Changsha Jiandu Museum () is a history museum located at No. 92 of Baisha Road in Tianxin District, Changsha, Hunan, China.  It is adjacent to Baisha Well in the south and Tianxin Pavilion in the west.  Changsha Jiandu Museum is currently a large-scale modern themed museum dedicated to the collection, preservation, arrangement, study and exhibition of bamboo script ("Jiandu").  It is also an important spot of cultural and scenic interest and a window to showcase Changsha to the world.  It covers an area of 14100 m2 .
citations: Changsha Lingwu