( ( ( ( ( Pure ( , ( ( neutral water ) ( has ( ( a pH ) ( of 7 ) ) ) ) ) ) , ) but ) ( ( anything ( that ( measures ( between ( ( 0 and ) 7 ) ) ) ) ) ( is ( acidic ( -LRB- ( ( such ( as ( ( ( lemon juice ) , ) ( which ( has ( ( a pH ) ( of 2 ) ) ) ) ) ) ) -RRB- ) ) ) ) ) ) . )
(ROOT (S (S (ADVP (RB Pure)) (, ,) (NP (JJ neutral) (NN water)) (VP (VBZ has) (NP (NP (DT a) (NN pH)) (PP (IN of) (NP (CD 7)))))) (, ,) (CC but) (S (NP (NP (NN anything)) (SBAR (WHNP (WDT that)) (S (VP (VBZ measures) (PP (IN between) (NP (CD 0) (CC and) (CD 7))))))) (VP (VBZ is) (ADJP (VBN acidic) (PRN (-LRB- -LRB-) (PP (JJ such) (IN as) (NP (NP (JJ lemon) (NN juice)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ has) (NP (NP (DT a) (NN pH)) (PP (IN of) (NP (CD 2))))))))) (-RRB- -RRB-))))) (. .)))
Pure, neutral water has a pH of 7, but anything that measures between 0 and 7 is acidic (such as lemon juice, which has a pH of 2).
(ROOT (S (NP (CD 7)) (VP (VBZ is) (NP (NP (DT the) (NN ph)) (PP (IN of) (NP (JJ pure) (NN water))))) (. .)))