she began , But they discovered up .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (ATS_0 (S_1 (NP_0 (PRP_1 she)) (VP_5 (VBD_1 began))) (COMMA_0 ,)) (CC_0 But)) (S_1 (NP_0 (PRP_1 they)) (VP_5 (VBD_0 discovered) (PRT_0 (RP_0 up))))) (DOT_0 .)))