( ( pH ( ( ( a ( measurement scale ) ) ( indicating ( ( ( ( acidity and ) alkalinity ) ( in which ) ) ( values ( less ( than 7 ) ) ) ) ) ) ( are acidic ) ) ) ( , ( ( ( ( ( ( ( the value ) ( of 7 ) ) ( is neutral ) ) , ) and ) ( ( values ( from ( ( 7 to ) 14 ) ) ) ( ( are basic ) ( -LRB- ( alkaline -RRB- ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (NN pH)) (SBAR (S (NP (NP (DT a) (NN measurement) (NN scale)) (VP (VBG indicating) (SBAR (WHNP (NP (NN acidity) (CC and) (NN alkalinity)) (WHPP (IN in) (WHNP (WDT which)))) (S (VP (VBZ values) (NP (QP (JJR less) (IN than) (CD 7)))))))) (VP (VBP are) (ADJP (JJ acidic)))))) (, ,) (S (NP (NP (DT the) (NN value)) (PP (IN of) (NP (CD 7)))) (VP (VBZ is) (ADJP (JJ neutral)))) (, ,) (CC and) (S (NP (NP (NNS values)) (PP (IN from) (NP (QP (CD 7) (TO to) (CD 14))))) (VP (VBP are) (ADJP (JJ basic)) (PRN (-LRB- -LRB-) (ADJP (JJ alkaline)) (-RRB- -RRB-)))) (. .)))
pH a measurement scale indicating acidity and alkalinity in which values less than 7 are acidic, the value of 7 is neutral, and values from 7 to 14 are basic (alkaline).
(ROOT (S (NP (DT The) (NN ph) (NN scale)) (VP (VP (VBZ measures) (NP (NNS acids) (CC and) (NNS bases))) (CC and) (VP (VBZ has) (NP (NP (CD 7)) (PP (IN as) (NP (DT a) (JJ neutral) (NN value)))))) (. .)))
The ph scale measures acids and bases and has 7 as a neutral value.