( Malleability ( ( is ( ( a ( physical property ) ) ( of ( metals ( that ( defines ( the ( ability ( to ( be ( ( ( ( ( hammered , ) pressed ) , ) or ) ( ( rolled ( into ( thin sheets ) ) ) ( without breaking ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Malleability)) (VP (VBZ is) (NP (NP (DT a) (JJ physical) (NN property)) (PP (IN of) (NP (NP (NNS metals)) (SBAR (WHNP (WDT that)) (S (VP (VBZ defines) (NP (DT the) (NN ability) (S (VP (TO to) (VP (VB be) (VP (VP (VBN hammered)) (, ,) (VP (VBN pressed)) (, ,) (CC or) (VP (VBN rolled) (PP (IN into) (NP (JJ thin) (NNS sheets))) (PP (IN without) (NP (NN breaking)))))))))))))))) (. .)))
Malleability is a physical property of metals that defines the ability to be hammered, pressed, or rolled into thin sheets without breaking.
(ROOT (S (NP (NP (DT The) (NN malleability)) (PP (IN of) (NP (NNS materials)))) (VP (VBZ describes) (NP (NP (DT the) (NN ease)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (PRP they)) (VP (MD can) (VP (VB be) (VP (VBN molded) (PP (IN into) (NP (JJ thin) (NNS sheets)))))))))) (. .)))
The malleability of materials describes the ease in which they can be molded into thin sheets.