( ( Make ( ( a ( circle graph ) ) ( showing ( ( the composition ) ( of air ) ) ) ) ) . )
(ROOT (S (VP (VB Make) (NP (NP (DT a) (NN circle) (NN graph)) (VP (VBG showing) (NP (NP (DT the) (NN composition)) (PP (IN of) (NP (NN air))))))) (. .)))
Make a circle graph showing the composition of air.
(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))))))))) (. .)))