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(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (ATVP_3 (VBD_2 used) (PRT_0 (RP_0 back))) (S_2 (VP_0 (VBD_2 discovered) (VP_2 (VBN_0 jerked) (PP_2 (IN_0 than) (NP_3 (ATNP_0 (NP_4 (NNS_1 trips)) (CC_0 and)) (SBAR_0 (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 tell) (S_2 (VP_0 (ATVP_4 (VB_0 get) (PP_1 (IN_1 of) (NP_2 (NN_3 freezing)))) (PP_2 (IN_0 in) (NP_3 (PRPDOLLAR_0 his) (NN_0 friend)))))))))))))))) (DOT_0 .)))