( ( In ( ( the middle ) of ) ) ( ( ( the scale ) ( -LRB- ( ( pH 7 ) -RRB- ) ) ) ( ( would ( ( be neutral ) ( -LRB- ( ( pure water ) -RRB- ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT the) (NN middle)) (PP (IN of)))) (NP (NP (DT the) (NN scale)) (PRN (-LRB- -LRB-) (NP (QP (CD pH) (CD 7))) (-RRB- -RRB-))) (VP (MD would) (VP (VB be) (ADJP (JJ neutral)) (PRN (-LRB- -LRB-) (NP (JJ pure) (NN water)) (-RRB- -RRB-)))) (. .)))
In the middle of the scale (pH 7) would be neutral (pure water).
(ROOT (S (NP (CD 7)) (VP (VBZ is) (NP (NP (DT the) (NN ph)) (PP (IN of) (NP (JJ pure) (NN water))))) (. .)))