her can keep corn boulders . boy can help mattered .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_3 (NP_1 (PRP_0 her)) (VP_4 (MD_0 can) (VP_1 (VB_0 keep) (NP_3 (NN_0 corn) (NNS_1 boulders))))) (DOT_0 .)) (NP_0 (NN_2 boy))) (VP_3 (MD_0 can) (VP_1 (VB_0 help) (VP_2 (VBN_0 mattered))))) (DOT_0 .)))