He <apostrophe>s back <apostrophe>s the friends . <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (ATVP_1 (VBZ_0 <apostrophe>s) (PRT_0 (RP_0 back))) (VP_5 (VBZ_0 <apostrophe>s) (NP_2 (DT_0 the) (NNS_1 friends))))) (DOT_0 .)) (APOSTROPHE_0 <apostrophe><apostrophe>)))