( ( Neutral solutions ) ( ( are ( ( ( pH 7 ) , ) ( ( the pH ) ( of ( pure water ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Neutral) (NNS solutions)) (VP (VBP are) (NP (NP (QP (CD pH) (CD 7))) (, ,) (NP (NP (DT the) (NN pH)) (PP (IN of) (NP (JJ pure) (NN water)))))) (. .)))
Neutral solutions are pH 7, the pH of pure water.
(ROOT (S (NP (CD 7)) (VP (VBZ is) (NP (NP (DT the) (NN ph)) (PP (IN of) (NP (JJ pure) (NN water))))) (. .)))