( ( ( A ( pH value ) ) ( of 7 ) ) ( ( ( ( is neutral ) , ) ( like ( distilled water ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN pH) (NN value)) (PP (IN of) (NP (CD 7)))) (VP (VBZ is) (ADJP (JJ neutral)) (, ,) (PP (IN like) (NP (VBN distilled) (NN water)))) (. .)))
A pH value of 7 is neutral, like distilled water.
(ROOT (S (NP (NNP Water)) (VP (VBZ is) (PP (IN at) (NP (NP (DT the) (NN neutrality)) (, ,) (NP (NP (CD 7) (NN point)) (PP (IN on) (NP (DT the) (NN ph) (NN scale))))))) (. .)))