( ( For example ) ( ( , ( ( ( line graphs ) ( can ( ( show changes ) ( over time ) ) ) ) , ) ) ( ( ( ( ( ( bar graphs ) ( can ( compare quantities ) ) ) , ) and ) ( ( pie graphs ) ( can ( ( show ( ( the relationship ) ( of parts ) ) ) ( to ( a whole ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (PRN (, ,) (S (NP (NN line) (NNS graphs)) (VP (MD can) (VP (VB show) (NP (NNS changes)) (PP (IN over) (NP (NN time)))))) (, ,)) (S (NP (NN bar) (NNS graphs)) (VP (MD can) (VP (VB compare) (NP (NNS quantities))))) (, ,) (CC and) (S (NP (NN pie) (NNS graphs)) (VP (MD can) (VP (VB show) (NP (NP (DT the) (NN relationship)) (PP (IN of) (NP (NNS parts)))) (PP (TO to) (NP (DT a) (NN whole)))))) (. .)))
For example, line graphs can show changes over time, bar graphs can compare quantities, and pie graphs can show the relationship of parts to a whole.
(ROOT (S (NP (NNP Line) (NNS graphs)) (VP (VBP are) (ADJP (RB especially) (JJ useful) (PP (IN for) (S (VP (VBG showing) (NP (NNS changes)) (PP (IN over) (NP (NN time)))))))) (. .)))