They could be on they to teach a actions in the embroidered mahogany .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (MD_0 could) (VP_1 (ATVP_4 (VB_0 be) (PP_1 (IN_1 on) (NP_0 (PRP_1 they)))) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 teach) (NP_3 (NP_6 (DT_0 a) (NNS_1 actions)) (PP_0 (IN_1 in) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 embroidered)) (NN_1 mahogany)))))))))) (DOT_0 .)))