Text: Legend holds that the Kathmandu Valley was once a vast lake, upon which floated a giant lotus flower, from which emanated the light of Swayambhu, the primordial Buddha.
Entailment: According to the legend, Kathmandu Valley was once a vast lake, upon which floated a giant lotus flower, from which emanated the light of Swayambhu, the primordial Buddha.
Contradiction: Legend says that the Kathmandu Valley was once a narrow canyon, from which floated a giant black cube, from which emanated the blackness of Africa.