I was too not keep his giggles .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 I)) (VP_4 (ATVP_1 (VBD_1 was) (ADVP_0 (RB_1 too) (RB_1 not))) (VP_5 (VB_0 keep) (NP_3 (PRPDOLLAR_0 his) (NNS_0 giggles))))) (DOT_0 .)))