They have a ditch on Spanish classes .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBP_0 have) (NP_6 (NP_5 (DT_0 a) (NN_2 ditch)) (PP_2 (IN_0 on) (NP_3 (NNP_1 Spanish) (NNS_1 classes)))))) (DOT_0 .)))