( ( ( ( ( ( ( Pure water ) ( has ( ( a pH ) ( of 7 ) ) ) ) , ) and ) ( , ( generally , ) ) ) ( rainfall ( ( is somewhat ) ( on ( the ( acidic side ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Pure) (NN water)) (VP (VBZ has) (NP (NP (DT a) (NN pH)) (PP (IN of) (NP (CD 7)))))) (, ,) (CC and) (PRN (, ,) (ADVP (RB generally)) (, ,)) (S (NP (NNS rainfall)) (VP (VBZ is) (ADVP (RB somewhat)) (PP (IN on) (NP (DT the) (JJ acidic) (NN side))))) (. .)))
Pure water has a pH of 7, and, generally, rainfall is somewhat on the acidic side.
(ROOT (S (NP (CD 7)) (VP (VBZ is) (NP (NP (DT the) (NN ph)) (PP (IN of) (NP (JJ pure) (NN water))))) (. .)))