sentence2_structure: The malleability of materials<>describes<>the ease in which they can be molded into thin sheets$$$they<>can be molded<>into thin sheets<>the ease
sentence1: Malleability is the ability of a metal to be hammered into thin sheets.
sentence2: The malleability of materials describes the ease in which they can be molded into thin sheets.
question: What property of materials describes the ease in which they can be molded into thin sheets?