( ( ( ( ( Pure water ) , ) ( at ( 7 pH ) ) ) , ) ( ( is ( ( ( ( neutral -- ) ( neither acidic ) ) or ) alkaline ) ) . ) )
(ROOT (S (NP (NP (JJ Pure) (NN water)) (, ,) (PP (IN at) (NP (CD 7) (NN pH))) (, ,)) (VP (VBZ is) (ADJP (ADJP (JJ neutral)) (: --) (ADJP (RB neither) (JJ acidic)) (CC or) (ADJP (JJ alkaline)))) (. .)))
Pure water, at 7 pH, is neutral--neither acidic or alkaline.
(ROOT (S (NP (CD 7)) (VP (VBZ is) (NP (NP (DT the) (NN ph)) (PP (IN of) (NP (JJ pure) (NN water))))) (. .)))