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diff --git a/experimental/bidirectional/src/transpair_model2.h b/experimental/bidirectional/src/transpair_model2.h
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+/*
+
+Copyright (C) 2000,2001  Franz Josef Och (RWTH Aachen - Lehrstuhl fuer Informatik VI)
+
+This file is part of GIZA++ ( extension of GIZA ).
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, 
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
+USA.
+
+*/
+#ifndef transpair_model2_defined_h
+#define transpair_model2_defined_h
+
+#include "defs.h"
+#include "Vector.h"
+#include "NTables.h"
+#include "ATables.h"
+#include "TTables.h"
+#include "alignment.h"
+#include <math.h>
+#include "transpair_model1.h"
+
+
+class transpair_model2 : public transpair_model1
+{
+ protected:
+  Array2<PROB, Vector<PROB> > a;
+ public:
+  transpair_model2(const Vector<WordIndex>&es, const Vector<WordIndex>&fs, const tmodel<COUNT, PROB>&tTable, 
+		   const amodel<PROB>&aTable)
+    : transpair_model1(es,fs,tTable),a(es.size(),fs.size())
+    {
+      for(WordIndex i=0;i<=l;i++)
+	for(WordIndex j=1;j<=m;j++)
+	  a(i, j)=aTable.getValue(i, j, l, m);
+    }
+  const PROB&get_a(WordIndex i, WordIndex j)const
+    {return a(i, j);}
+};
+#endif