( ( ( The ( four stages ) ) ( in ( this ( insect ( life cycle ) ) ) ) ) ( ( are ( the ( egg ( , ( larva ( , ( ( pupa and ) adult ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (CD four) (NNS stages)) (PP (IN in) (NP (DT this) (JJ insect) (NN life) (NN cycle)))) (VP (VBP are) (NP (DT the) (NN egg) (, ,) (NN larva) (, ,) (NN pupa) (CC and) (NN adult))) (. .)))
The four stages in this insect life cycle are the egg, larva, pupa and adult.
(ROOT (S (NP (NP (DT The) (NN sequence) (NN egg)) (PRN (: -) (NP (NP (JJ >) (NN larva)) (: -) (NP (JJ >) (NN pupa))) (: -))) (VP (VBD >) (SBAR (S (NP (NN adult)) (VP (VBZ shows) (NP (NP (DT the) (NN life) (NN cycle)) (PP (IN of) (NP (DT some) (NNS insects)))))))) (. .)))
The sequence egg -> larva -> pupa -> adult shows the life cycle of some insects.