( ( ( A pH ) ( of 7 ) ) ( ( indicates ( a ( neutral water ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN pH)) (PP (IN of) (NP (CD 7)))) (VP (VBZ indicates) (NP (DT a) (JJ neutral) (NN water))) (. .)))
A pH of 7 indicates a neutral 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))))))) (. .)))