by Zone for friend , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (PP_2 (IN_0 by) (NP_3 (NP_6 (NNP_1 Zone)) (PP_0 (IN_1 for) (NP_2 (NN_3 friend))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))