( Babies ( ( should ( ( get ( ( ( breast milk ) or ) ( infant formula ) ) ) ( their ( first year ) ) ) ) . ) )
(ROOT (S (NP (NNP Babies)) (VP (MD should) (VP (VB get) (NP (NP (NN breast) (NN milk)) (CC or) (NP (JJ infant) (NN formula))) (NP (PRP$ their) (JJ first) (NN year)))) (. .)))
Babies should get breast milk or infant formula their first 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.