him mutter in the tree do , but a conference was nice grass .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (ATS_0 (S_1 (NP_0 (PRP_1 him)) (VP_5 (ATVP_1 (VBP_0 mutter) (PP_2 (IN_0 in) (NP_6 (DT_0 the) (NN_2 tree)))) (VP_1 (VB_0 do)))) (COMMA_0 ,)) (CC_0 but)) (S_1 (NP_0 (DT_0 a) (NN_2 conference)) (VP_5 (VBD_1 was) (NP_3 (JJ_1 nice) (NN_0 grass))))) (DOT_0 .)))