since His corn was Bolivian off every powdery , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (SBAR_0 (IN_2 since) (S_1 (NP_0 (PRPDOLLAR_0 His) (NN_0 corn)) (VP_5 (VBD_1 was) (NP_3 (NP_6 (NNP_1 Bolivian)) (PP_0 (IN_1 off) (NP_5 (DT_0 every) (NN_2 powdery))))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))