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