he shifted to finger trips . the boy was sheathed in the back streaming .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_3 (NP_0 (PRP_1 he)) (VP_2 (VBN_0 shifted) (PP_2 (TO_0 to) (NP_3 (NN_0 finger) (NNS_1 trips))))) (DOT_0 .)) (NP_0 (DT_0 the) (NN_2 boy))) (VP_3 (VBD_1 was) (VP_2 (VBN_0 sheathed) (PP_0 (IN_1 in) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 back)) (NN_1 streaming)))))) (DOT_0 .)))