( World3 ( nonrenewable ( resource sector ) ) )
(ROOT (S (VP (VB World3) (NP (JJ nonrenewable) (NN resource) (NN sector)))))
World3 nonrenewable resource sector
(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))))))))) (. .)))