it is back heard scuffed came shifted .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 it)) (VP_4 (ATVP_1 (VBZ_0 is) (PRT_0 (RP_0 back))) (VP_5 (VBD_0 heard) (ADJP_0 (JJ_0 scuffed) (S_2 (VP_0 (VBD_2 came) (VP_2 (VBN_0 shifted)))))))) (DOT_0 .)))