( ( ( Concentrated ( , ( ( easily mined ) reserves ) ) ) ( of ( nonrenewable resources ) ) ) ( ( are ( being depleted ) ) . ) )
(ROOT (S (NP (NP (JJ Concentrated) (, ,) (ADJP (RB easily) (JJ mined)) (NNS reserves)) (PP (IN of) (NP (JJ nonrenewable) (NNS resources)))) (VP (VBP are) (VP (VBG being) (VP (VBN depleted)))) (. .)))
Concentrated, easily mined reserves of nonrenewable resources are being depleted.
(ROOT (S (NP (JJ Nonrenewable) (NNS resources)) (VP (MD can) (RB not) (VP (VB be) (VP (VBN replaced) (ADVP (ADVP (RB as) (RB easily)) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN consumed))))))))) (. .)))