( ( Know ( ( the relationship ) ( between ( ( the ( ( solute and ) solvent ) ) ( in ( a solution ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Know)) (NP (NP (DT the) (NN relationship)) (PP (IN between) (NP (NP (DT the) (ADJP (JJ solute) (CC and) (JJ solvent))) (PP (IN in) (NP (DT a) (NN solution)))))) (. .)))
Know the relationship between the solute and solvent in a solution.
(ROOT (S (S (PP (IN In) (NP (NP (DT a) (NN glass)) (PP (IN of) (NP (JJ sweet) (NN tea))))) (NP (DT the) (NN sugar)) (VP (VBZ is) (VP (VBN known) (PP (IN as) (NP (DT the) (NN solute)))))) (CC and) (S (NP (DT the) (NN water)) (VP (VBZ is) (VP (VBN known) (PP (IN as) (NP (DT the) (JJ solvent)))))) (. .)))