( ( ( ( ( ( The ( final stage ) ) ( of ( prenatal development ) ) ) , ) ( the ( fetal stage ) ) ) , ) ( ( ( lasts ( from ( approximately week ) ) ) ( eight ( to birth ) ) ) . ) )
(ROOT (S (NP (NP (NP (DT The) (JJ final) (NN stage)) (PP (IN of) (NP (JJ prenatal) (NN development)))) (, ,) (NP (DT the) (JJ fetal) (NN stage)) (, ,)) (VP (VBZ lasts) (PP (IN from) (NP (RB approximately) (NN week))) (NP (NP (CD eight)) (PP (TO to) (NP (NN birth))))) (. .)))
The final stage of prenatal development, the fetal stage , lasts from approximately week eight to birth.
(ROOT (S (NP (DT The) (JJ fetal) (NN period)) (VP (VBZ lasts) (NP (NP (QP (RB approximately) (CD 30)) (NNS weeks)) (NP (NNS weeks)))) (. .)))