( World3 ( nonrenewable ( resource sector ) ) )
(ROOT (S (VP (VB World3) (NP (JJ nonrenewable) (NN resource) (NN sector)))))
World3 nonrenewable resource sector
(ROOT (S (NP (NP (NNP Soil)) (, ,) (PP (IN for) (NP (JJ human) (NNS purposes))) (, ,)) (VP (VBZ is) (S (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-)) (VP (VB nonrenewable) (NP (NN resource))))) (. .)))