( ( Type ( of ( graph ( for ( representing ( parts ( of ( a whole ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Type)) (PP (IN of) (NP (NP (NN graph)) (PP (IN for) (S (VP (VBG representing) (NP (NP (NNS parts)) (PP (IN of) (NP (DT a) (NN whole))))))))) (. .)))
Type of graph for representing parts of a whole.
(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))))))))) (. .)))