Take the following as truth: The fact, according to geologists, is that the Kathmandu Valley was indeed once a lake, though the valley's waters now drain through the narrow cleft of Chobar Gorge, which was most likely created by a large earthquake.)
Then the following statement: "The fact, according to geologists, is that the Kathmandu Valley has never contained a significant amount of water. " is true, false, or inconclusive?