It could maybe back boulders crumpled Noah .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 It)) (VP_4 (ATVP_1 (MD_0 could) (ADVP_0 (RB_1 maybe) (NP_4 (JJ_1 back) (NNS_1 boulders)))) (VP_1 (VBN_0 crumpled) (NP_1 (NNP_0 Noah))))) (DOT_0 .)))