he slithered It sporting with by a arm parents .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 he)) (VP_4 (VBD_2 slithered) (S_2 (NP_1 (PRP_0 It)) (VP_0 (VBG_0 sporting) (PP_2 (IN_0 with) (PP_2 (IN_0 by) (NP_3 (ATNP_0 (DT_0 a) (NN_3 arm)) (NNS_0 parents)))))))) (DOT_0 .)))