Noah could back do by the muddy smile of a giggles .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NNP_0 Noah)) (VP_4 (ATVP_1 (MD_0 could) (ADVP_0 (RB_0 back))) (VP_5 (VBP_0 do) (PP_2 (IN_0 by) (NP_3 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 muddy)) (NN_1 smile)) (PP_0 (IN_1 of) (NP_6 (DT_0 a) (NNS_1 giggles)))))))) (DOT_0 .)))