proves that sometimes the dreams of youth should remain just that 
(ROOT (S (VP (VBZ proves) (SBAR (IN that) (S (ADVP (RB sometimes)) (NP (NP (DT the) (NNS dreams)) (PP (IN of) (NP (NN youth)))) (VP (MD should) (VP (VB remain) (NP (RB just) (DT that)))))))))
(ROOT (S (VP (VBZ ) (SBAR (IN ) (S (ADVP (RB )) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (NN )))) (VP (MD ) (VP (VB ) (NP (RB ) (DT )))))))))