he should Maybe march heard by these ditch .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 he)) (VP_4 (ATVP_1 (MD_0 should) (ADVP_0 (RB_0 Maybe))) (VP_1 (VB_0 march) (VP_2 (VBN_0 heard) (PP_2 (IN_0 by) (NP_5 (DT_0 these) (NN_2 ditch))))))) (DOT_0 .)))