At privacy classes , there was on .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (PP_2 (IN_0 At) (NP_3 (NN_0 privacy) (NNS_1 classes))) (COMMA_0 ,)) (NP_0 (EX_0 there))) (VP_3 (VBD_1 was) (ADJP_0 (RP_0 on)))) (DOT_0 .)))