Text: To explore its fascinating subterranean sights, start with the Whity Umeda, under the Hankyu and Hanshin buildings, then move on to Herbis Plaza but don't expect to see daylight again for some time.
Entailment: The best place to start exploring the sights is with Whity Umeda.
Contradiction: The most challenging area for tourists to explore is Whity Umeda, which is on top of a large mountain.