Premise: At the top of a 272-step staircase is the Cathedral Cave, the most breathtaking of the three, with its architectural columns of lofty stalactites and stalagmites.

Hypothesis: Cathedral Cave is at the top of a 272-step staircase, and it is the most breathtaking of the three, with its architectural columns of lofty stalactites and stalagmites.
Relation: entailment