( ( ( Fetal Period ) ( The ( fetal period ) ) ) ( ( ( encompasses ( ( the ( ninth week ) ) ( of gestation ) ) ) ( until birth ) ) . ) )
(ROOT (S (NP (NP (JJ Fetal) (NN Period)) (NP (DT The) (JJ fetal) (NN period))) (VP (VBZ encompasses) (NP (NP (DT the) (JJ ninth) (NN week)) (PP (IN of) (NP (NN gestation)))) (PP (IN until) (NP (NN birth)))) (. .)))
Fetal Period The fetal period encompasses the ninth week of gestation until 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)))) (. .)))