a friend had out his ballet flats .
(ROOT_0 (S_0 (ATS_3 (NP_1 (DT_0 a) (NN_2 friend)) (VP_4 (ATVP_3 (VBD_2 had) (PRT_0 (RP_0 out))) (NP_3 (ATNP_0 (PRPDOLLAR_0 his) (JJ_0 ballet)) (NNS_0 flats)))) (DOT_0 .)))