( ( Solution ( pH ( ( The pH ) ( of ( a solution ) ) ) ) ) ( ( is ( ( a measure ) ( of ( its ( ( acidity or ) alkalinity ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NN Solution)) (VP (VBG pH) (NP (NP (DT The) (NN pH)) (PP (IN of) (NP (DT a) (NN solution)))))) (VP (VBZ is) (NP (NP (DT a) (NN measure)) (PP (IN of) (NP (PRP$ its) (NN acidity) (CC or) (NN alkalinity))))) (. .)))
Solution pH The pH of a solution is a measure of its acidity or alkalinity.
(ROOT (S (NP (NP (DT The) (NN acidity)) (PP (IN of) (NP (DT a) (NN solution)))) (VP (VBZ is) (ADVP (RB typically)) (VP (VBN assessed) (ADVP (RB experimentally)) (PP (IN by) (NP (NP (NN measurement)) (PP (IN of) (NP (PRP$ its) (NN ph.)))))))))