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%%      Copyright (C) 1995,1996,1997,1998 University of Oxford           %%
%%                                                                       %%
%% Permission to use, copy, modify, and distribute this software,        %%
%% and to incorporate it, in whole or in part, into other software,      %%
%% is hereby granted without fee, provided that                          %%
%%   (1) the above copyright notice and this permission notice appear in %%
%%       all copies of the source code, and the above copyright notice   %%
%%       appear in clearly visible form on all supporting documentation  %%
%%       and distribution media;                                         %%
%%   (2) modified versions of this software be accompanied by a complete %%
%%       change history describing author, date, and modifications made; %%
%%       and                                                             %%
%%   (3) any redistribution of the software, in original or modified     %%
%%       form, be without fee and subject to these same conditions.      %%
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