( ( Since ( ( oxygen-enriched water ) ( ( ( flows out ) ( of ( the bioreactor ) ) ) ( into ( ( the aquifer ) ( at ( ( the ( upper ( screened segment ) ) ) ( of ( the well ) ) ) ) ) ) ) ) ) ( , ( biodegradation ( ( ( is also ) ( enhanced ( in ( the aquifer ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Since) (S (NP (JJ oxygen-enriched) (NN water)) (VP (VBZ flows) (PRT (RP out)) (PP (IN of) (NP (DT the) (NN bioreactor))) (PP (IN into) (NP (NP (DT the) (NN aquifer)) (PP (IN at) (NP (NP (DT the) (JJ upper) (JJ screened) (NN segment)) (PP (IN of) (NP (DT the) (NN well)))))))))) (, ,) (NP (NN biodegradation)) (VP (VBZ is) (ADVP (RB also)) (VP (VBN enhanced) (PP (IN in) (NP (DT the) (NN aquifer))))) (. .)))
Since oxygen-enriched water flows out of the bioreactor into the aquifer at the upper screened segment of the well, biodegradation is also enhanced in the aquifer.
(ROOT (S (NP (NNP Dig) (NNP a)) (ADVP (RB well)) (VP (VBZ allows) (S (NP (NNS people)) (VP (TO to) (VP (VB access) (NP (NN water)) (PP (IN in) (NP (NP (DT an) (NN aquifer)) (SBAR (WHNP (WDT that)) (S (VP (VBZ does) (RB not) (VP (VB flow) (PP (IN from) (NP (NP (DT a) (NN spring)) (CC or) (NP (DT a) (NN geyser)))))))))))))) (. .)))