Oh , we know who to and be .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (INTJ_0 (UH_0 Oh)) (COMMA_0 ,)) (NP_0 (PRP_1 we))) (VP_3 (ATVP_1 (VP_5 (VBP_0 know) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VP_0 (TO_0 to))))) (CC_0 and)) (VP_1 (VB_0 be)))) (DOT_0 .)))