Input (grade 13): Price, Ward (16 December 1918) "Danger in Taurus Tunnels" New York Times Geography In the Aladaglar and Bolkar mountains, limestone has eroded to form karstic landscapes of waterfalls, underground rivers, and some of the largest caves of Asia.
Output (grade 8): Limestone has eroded to form karstic landscapes of waterfalls, underground rivers, and the largest caves of Asia.