( ( Sediments ( in ( oligotrophic lakes ) ) ) ( ( contain ( ( larger amounts ) ( of ( decomposable ( organic matter ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Sediments)) (PP (IN in) (NP (JJ oligotrophic) (NNS lakes)))) (VP (VBP contain) (NP (NP (JJR larger) (NNS amounts)) (PP (IN of) (NP (JJ decomposable) (JJ organic) (NN matter))))) (. .)))
Sediments in oligotrophic lakes contain larger amounts of decomposable organic matter.
(ROOT (S (NP (NP (NNS Sediments)) (PP (IN in) (NP (JJ oligotrophic) (NNS lakes)))) (VP (VBP contain) (NP (NP (JJ large) (NNS amounts)) (PP (IN of) (NP (JJ decomposable) (JJ organic) (NN matter))))) (. .)))