( ( Since ( lawns ( ( ( are not ) actively ) growing ) ) ) ( , ( ( water uptake ) ( ( is low ) . ) ) ) )
(ROOT (S (SBAR (IN Since) (S (NP (NNP lawns)) (VP (VBP are) (RB not) (ADVP (RB actively)) (VP (VBG growing))))) (, ,) (NP (NN water) (NN uptake)) (VP (VBZ is) (ADJP (JJ low))) (. .)))
Since lawns are not actively growing, water uptake is low.
(ROOT (S (NP (RBS Most) (JJ growing) (NN plant) (NNS cells)) (VP (VBP expand) (PP (IN through) (NP (NN water) (NN uptake)))) (. .)))