I let the waist-high wall began not Tuesday .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 I)) (VP_4 (ATVP_3 (VBD_0 let) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 waist-high)) (NN_1 wall))) (S_2 (VP_0 (ATVP_1 (VBD_1 began) (RB_1 not)) (NP_6 (NNP_1 Tuesday)))))) (DOT_0 .)))