the sturdy tree tossed to teaching around from to move about of seat .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_1 (DT_0 the) (JJ_1 sturdy)) (NN_0 tree)) (VP_4 (VBD_2 tossed) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_2 (ATVP_0 (VBG_0 teaching) (PRT_0 (RP_0 around))) (PP_1 (IN_1 from) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 move) (PRT_0 (RP_0 about))))))) (PP_1 (IN_1 of) (NP_2 (NN_3 seat)))))))) (DOT_0 .)))