( aqueous ( ( ( ( solution ( A solution ) ) ( with water ) ) ( as ( the solvent ) ) ) . ) )
(ROOT (S (NP (NNS aqueous)) (VP (VBD solution) (NP (DT A) (NN solution)) (PP (IN with) (NP (NN water))) (PP (IN as) (NP (DT the) (JJ solvent)))) (. .)))
aqueous solution A solution with water as the solvent.
(ROOT (S (NP (JJ Aqueous) (NN solution)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (NP (NP (DT a) (NN solution)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NN water)) (VP (VBZ is) (NP (DT the) (JJ solvent))))))))))) (. .)))