world heard Not teach , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (SBAR_0 (S_1 (NP_0 (NN_2 world)) (VP_5 (ATVP_1 (VBD_0 heard) (RB_1 Not)) (VP_1 (VB_0 teach))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))