5 The share of gross national saving used to replace depreciated capital has increased over the past 40 years.
( ( ( 5 ( The share ) ) ( of ( ( gross ( national saving ) ) ( used ( to ( replace ( depreciated capital ) ) ) ) ) ) ) ( ( has ( increased ( over ( the ( past ( 40 years ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (CD 5)) (NP (DT The) (NN share))) (PP (IN of) (NP (NP (JJ gross) (JJ national) (NN saving)) (VP (VBN used) (S (VP (TO to) (VP (VB replace) (NP (JJ depreciated) (NN capital))))))))) (VP (VBZ has) (VP (VBN increased) (PP (IN over) (NP (DT the) (JJ past) (CD 40) (NNS years))))) (. .)))
Depreciated capital does not need to be replaced.
( ( Depreciated capital ) ( ( ( does not ) ( need ( to ( be replaced ) ) ) ) . ) )
(ROOT (S (NP (JJ Depreciated) (NN capital)) (VP (VBZ does) (RB not) (VP (VB need) (S (VP (TO to) (VP (VB be) (VP (VBN replaced))))))) (. .)))