Her arm watched on friend boulders on a car , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (SBAR_0 (S_1 (NP_0 (PRPDOLLAR_0 Her) (NN_0 arm)) (VP_5 (ATVP_4 (VBD_2 watched) (PP_2 (IN_0 on) (NP_3 (NN_0 friend) (NNS_1 boulders)))) (PP_2 (IN_0 on) (NP_5 (DT_0 a) (NN_2 car)))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))