( ( ( Excess nutrients ) ( such ( as ( ( nitrogen and ) phosphorus ) ) ) ) ( ( cause ( over ( fertilization ( which ( accelerates ( ( ( the ( natural ( aging process ) ) ) ( -LRB- ( EUTROPHICATION -RRB- ) ) ) ( of lakes ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Excess) (NNS nutrients)) (PP (JJ such) (IN as) (NP (NN nitrogen) (CC and) (NN phosphorus)))) (VP (VBP cause) (PP (IN over) (NP (NP (NN fertilization)) (SBAR (WHNP (WDT which)) (S (VP (VBZ accelerates) (NP (NP (DT the) (JJ natural) (VBG aging) (NN process)) (PRN (-LRB- -LRB-) (NP (NNP EUTROPHICATION)) (-RRB- -RRB-)) (PP (IN of) (NP (NNS lakes)))))))))) (. .)))
Excess nutrients such as nitrogen and phosphorus cause over fertilization which accelerates the natural aging process ( EUTROPHICATION) of lakes.
(ROOT (S (NP (NP (DT An) (NN excess)) (PP (IN of) (NP (NP (NNS fertilizers)) (CC and) (NP (JJ other) (NNS nutrients))))) (VP (VBZ causes) (ADJP (JJ eutrophication) (S (VP (TO to) (VP (VB occur)))))) (. .)))