of rough mounds the beak can do to get off every beak outside the gravel wall .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (PP_1 (IN_1 of) (NP_2 (JJ_1 rough) (NNS_1 mounds))) (NP_5 (DT_0 the) (NN_2 beak))) (VP_3 (MD_0 can) (VP_1 (ATVP_0 (VB_0 do) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 get) (PRT_0 (RP_0 off)))))) (NP_3 (NP_5 (DT_0 every) (NN_2 beak)) (PP_0 (IN_1 outside) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 gravel)) (NN_1 wall))))))) (DOT_0 .)))