( Ozone ( ( is ( ( ( a ( ( relatively simple ) molecule ) ) , ) ( consisting ( of ( ( three ( oxygen atoms ) ) ( bound together ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Ozone)) (VP (VBZ is) (NP (NP (DT a) (ADJP (RB relatively) (JJ simple)) (NN molecule)) (, ,) (VP (VBG consisting) (PP (IN of) (NP (NP (CD three) (NN oxygen) (NNS atoms)) (VP (VBN bound) (ADVP (RB together)))))))) (. .)))
Ozone is a relatively simple molecule, consisting of three oxygen atoms bound together.
(ROOT (S (NP (CD Three) (NN oxygen) (NNS ions)) (VP (VBP make) (PRT (RP up)) (NP (DT an) (NN ozone) (NN molecule))) (. .)))