( Now ( , ( ( ( ( ( ( large ( daily fluctuations ) ) ( in ( flows ( from ( one dam ) ) ) ) ) , ) ( for example ) ) , ) ( ( can ( ( ( change ( water levels ) ) downstream ) ( by ( ( ( as ( much ( as 3.5 ) ) ) feet ) ( in ( ( a matter ) ( of hours ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Now)) (, ,) (NP (NP (JJ large) (JJ daily) (NNS fluctuations)) (PP (IN in) (NP (NP (NNS flows)) (PP (IN from) (NP (CD one) (NN dam))))) (, ,) (PP (IN for) (NP (NN example))) (, ,)) (VP (MD can) (VP (VB change) (NP (NN water) (NNS levels)) (ADVP (RB downstream)) (PP (IN by) (NP (NP (QP (RB as) (JJ much) (IN as) (CD 3.5)) (NNS feet)) (PP (IN in) (NP (NP (DT a) (NN matter)) (PP (IN of) (NP (NNS hours))))))))) (. .)))
Now, large daily fluctuations in flows from one dam, for example, can change water levels downstream by as much as 3.5 feet in a matter of hours.
(ROOT (S (NP (NP (CD One) (NN example)) (PP (IN of) (NP (NN matter)))) (VP (VBZ is) (NP (NN water))) (. .)))
One example of matter is water.