( ( Draw ( ( a picture ) ( of ( a ( compound machine ) ) ) ) ) . )
(ROOT (S (VP (VB Draw) (NP (NP (DT a) (NN picture)) (PP (IN of) (NP (DT a) (JJ compound) (NN machine))))) (. .)))
Draw a picture of a compound machine.
(ROOT (S (NP (NNS Scissors)) (VP (VBP are) (NP (JJ compound) (NNS machines))) (. .)))