( ( The graph ) ( ( ( show ( the ( percent improvement ) ) ) ( on ( each ( of ( ( the ( four types ) ) ( of measures ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN graph)) (VP (VBP show) (NP (DT the) (NN percent) (NN improvement)) (PP (IN on) (NP (NP (DT each)) (PP (IN of) (NP (NP (DT the) (CD four) (NNS types)) (PP (IN of) (NP (NNS measures)))))))) (. .)))
The graph show the percent improvement on each of the four types of measures.
(ROOT (S (NP (NNP Circle) (NNS graphs)) (VP (VBP are) (ADJP (JJ useful) (PP (IN for) (S (VP (VBG showing) (NP (NP (NNS percents)) (PP (IN of) (NP (DT a) (NN whole))))))))) (. .)))