( ( Bottom mud ) ( ( contains ( ( ( a ( large amount ) ) ( of ( organic ( material ( and ( decomposing bacteria ) ) ) ) ) ) ( that ( will ( ( contribute ( to ( oxygen ( depletion problems ) ) ) ) ( if ( mixed ( with water ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Bottom) (NN mud)) (VP (VBZ contains) (NP (NP (DT a) (JJ large) (NN amount)) (PP (IN of) (NP (JJ organic) (NN material) (CC and) (NN decomposing) (NNS bacteria))) (SBAR (WHNP (WDT that)) (S (VP (MD will) (VP (VB contribute) (PP (TO to) (NP (NN oxygen) (NN depletion) (NNS problems))) (SBAR (IN if) (FRAG (ADJP (JJ mixed) (PP (IN with) (NP (NN water)))))))))))) (. .)))
Bottom mud contains a large amount of organic material and decomposing bacteria that will contribute to oxygen depletion problems if mixed with water.
(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))))) (. .)))