( Infants ( ( are ( birth ( to ( one year ) ) ) ) . ) )
(ROOT (S (NP (NNS Infants)) (VP (VBP are) (NP (NP (NN birth)) (PP (TO to) (NP (CD one) (NN year))))) (. .)))
Infants are birth to one year.
(ROOT (S (PP (IN During) (NP (NP (DT the) (JJ first) (NN year)) (PP (IN after) (NP (NN birth))))) (, ,) (NP (DT a) (NN baby)) (VP (VBD called) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN infant))) (. .)))
During the first year after birth, a baby called a(n) infant.