( Childhood ( ( is ( ( a ( ( most critical ) stage ) ) ( of life ) ) ) . ) )
(ROOT (S (NP (NNP Childhood)) (VP (VBZ is) (NP (NP (DT a) (ADJP (RBS most) (JJ critical)) (NN stage)) (PP (IN of) (NP (NN life))))) (. .)))
Childhood is a most critical stage of life.
(ROOT (S (NP (NNP Childhood)) (VP (VBZ is) (ADJP (ADJP (RB typically) (JJR easier)) (PP (IN for) (S (VP (VBG learning) (NP (JJ multiple) (NNS languages))))))) (. .)))