( Stage ( ( 1-Infancy ( This ( ( goes ( from birth ) ) ( until ( ( 1 year ) ( of age ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Stage)) (VP (VBD 1-Infancy) (SBAR (S (NP (DT This)) (VP (VBZ goes) (PP (IN from) (NP (NN birth))) (PP (IN until) (NP (NP (CD 1) (NN year)) (PP (IN of) (NP (NN age))))))))) (. .)))
Stage 1-Infancy This goes from birth until 1 year of age.
(ROOT (S (NP (NNP Infancy)) (VP (VBZ is) (NP (NP (DT the) (JJ first) (NN year)) (PP (IN of) (NP (NP (NN life)) (PP (VBG following) (NP (NN birth))))))) (. .)))