maybe guy sleeping the group so back to get then plastic .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_0 maybe)) (NP_0 (NN_2 guy))) (VP_3 (ATVP_3 (ATVP_4 (VBG_0 sleeping) (NP_5 (DT_0 the) (NN_2 group))) (ADVP_0 (RB_1 so) (RB_1 back))) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 get) (ADJP_0 (RB_0 then) (JJ_0 plastic))))))) (DOT_0 .)))