herself pushed discovered n<apostrophe>t keep to keep white .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 herself)) (VP_4 (VBD_2 pushed) (S_2 (VP_0 (ATVP_1 (VBD_1 discovered) (RB_1 n<apostrophe>t)) (VP_1 (VB_0 keep) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 keep) (ADJP_0 (JJ_0 white)))))))))) (DOT_0 .)))