you should be on that you guess .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 you)) (VP_4 (MD_0 should) (VP_1 (ATVP_0 (VB_0 be) (PRT_0 (RP_0 on))) (SBAR_0 (WHNP_0 (WDT_0 that)) (S_1 (NP_0 (PRP_1 you)) (VP_5 (VBP_0 guess))))))) (DOT_0 .)))