He smiled back get to hulking up since that began .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (ATVP_1 (VBD_0 smiled) (RB_1 back)) (VP_1 (VB_0 get) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_0 (VBG_0 hulking) (PRT_0 (RP_0 up))) (SBAR_0 (IN_2 since) (S_1 (NP_0 (DT_1 that)) (VP_5 (VBD_1 began)))))))))) (DOT_0 .)))