Between ages 3 and 4, this detachment of make-believe symbols from the real-life conditions they stand for is well developed.
( ( Between ( ( ( ages 3 ) and ) 4 ) ) ( , ( ( ( this detachment ) ( of ( ( make-believe symbols ) ( from ( ( the ( real-life conditions ) ) ( they ( stand for ) ) ) ) ) ) ) ( ( is ( well developed ) ) . ) ) ) )
(ROOT (S (PP (IN Between) (NP (NNS ages) (CD 3) (CC and) (CD 4))) (, ,) (NP (NP (DT this) (NN detachment)) (PP (IN of) (NP (NP (JJ make-believe) (NNS symbols)) (PP (IN from) (NP (NP (DT the) (JJ real-life) (NNS conditions)) (SBAR (S (NP (PRP they)) (VP (VBP stand) (PP (IN for)))))))))) (VP (VBZ is) (ADJP (RB well) (JJ developed))) (. .)))
At the ages 3 and 4, children can detach from make-believe into real-life.
( ( At ( ( the ages ) ( ( 3 and ) 4 ) ) ) ( , ( children ( ( can ( ( detach ( from make-believe ) ) ( into real-life ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NP (DT the) (NNS ages)) (NP (QP (CD 3) (CC and) (CD 4))))) (, ,) (NP (NNS children)) (VP (MD can) (VP (VB detach) (PP (IN from) (NP (NN make-believe))) (PP (IN into) (NP (NNP real-life))))) (. .)))