Input (grade 13): The Qingzang railway, Qinghai - Xizang railway, or Qinghai - Tibet railway (;), is a high-altitude railway that connects Xining, Qinghai Province, to Lhasa, Tibet Autonomous Region, in China.
Output (grade 12): The Qingzang railway (also called Qinghai - Xizang railway, or Qinghai - Tibet railway) is a railway line from Xining, Qinghai Province, to Lhasa in Tibet.