They also raise grave concerns about the recent proliferation of expensive commercial early learning centers, in which infants are barraged with letter and number fiashcards and slightly older toddlers are drenched in a full curriculum of reading, math, science, art, music, gym, and more.
( ( ( ( They ( also ( ( raise ( grave concerns ) ) ( about ( ( the ( recent proliferation ) ) ( of ( ( ( expensive ( commercial ( early ( learning centers ) ) ) ) , ) ( ( in which ) ( infants ( are ( barraged ( with ( letter ( and ( number fiashcards ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) and ) ( ( ( slightly older ) toddlers ) ( are ( drenched ( in ( ( a ( full curriculum ) ) ( of ( ( ( reading ( , ( math ( , ( science ( , ( art ( , ( music ( , ( gym , ) ) ) ) ) ) ) ) ) ) ) and ) more ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP They)) (ADVP (RB also)) (VP (VB raise) (NP (JJ grave) (NNS concerns)) (PP (IN about) (NP (NP (DT the) (JJ recent) (NN proliferation)) (PP (IN of) (NP (NP (JJ expensive) (JJ commercial) (JJ early) (NN learning) (NNS centers)) (, ,) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NNS infants)) (VP (VBP are) (VP (VBN barraged) (PP (IN with) (NP (NN letter) (CC and) (NN number) (NNS fiashcards))))))))))))) (CC and) (S (NP (ADJP (RB slightly) (JJR older)) (NNS toddlers)) (VP (VBP are) (VP (VBN drenched) (PP (IN in) (NP (NP (DT a) (JJ full) (NN curriculum)) (PP (IN of) (NP (NP (NN reading) (, ,) (NN math) (, ,) (NN science) (, ,) (NN art) (, ,) (NN music) (, ,) (NN gym) (, ,)) (CC and) (NP (JJR more))))))))) (. .)))
It's unclear if early learning centers actually help infants and older toddlers.
( It ( ( ( 's unclear ) ( if ( ( early ( learning centers ) ) ( actually ( help ( ( infants and ) ( older toddlers ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ 's) (ADJP (JJ unclear)) (SBAR (IN if) (S (NP (JJ early) (NN learning) (NNS centers)) (ADVP (RB actually)) (VP (VB help) (NP (NP (NNS infants)) (CC and) (NP (JJR older) (NNS toddlers))))))) (. .)))