She should was warily the friend Behind a native .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (MD_0 should) (VP_1 (ATVP_0 (VBD_1 was) (ADVP_0 (RB_0 warily))) (NP_3 (NP_5 (DT_0 the) (NN_2 friend)) (PP_0 (IN_1 Behind) (NP_5 (DT_0 a) (NN_2 native))))))) (DOT_0 .)))