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diff --git a/kaldi_io/src/tools/openfst/include/fst/epsnormalize.h b/kaldi_io/src/tools/openfst/include/fst/epsnormalize.h
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--- a/kaldi_io/src/tools/openfst/include/fst/epsnormalize.h
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-// epsnormalize.h
-
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// Copyright 2005-2010 Google, Inc.
-// Author: allauzen@google.com (Cyril Allauzen)
-//
-// \file
-// Function that implements epsilon normalization.
-
-#ifndef FST_LIB_EPSNORMALIZE_H__
-#define FST_LIB_EPSNORMALIZE_H__
-
-#include <tr1/unordered_map>
-using std::tr1::unordered_map;
-using std::tr1::unordered_multimap;
-
-
-#include <fst/factor-weight.h>
-#include <fst/invert.h>
-#include <fst/arc-map.h>
-#include <fst/rmepsilon.h>
-
-
-namespace fst {
-
-enum EpsNormalizeType {EPS_NORM_INPUT, EPS_NORM_OUTPUT};
-
-// Returns an equivalent FST that is epsilon-normalized. An acceptor is
-// epsilon-normalized if it is epsilon-removed. A transducer is input
-// epsilon-normalized if additionally if on each path any epsilon input
-// label follows all non-epsilon input labels. Output epsilon-normalized
-// is defined similarly.
-//
-// The input FST needs to be functional.
-//
-// References:
-// - Mehryar Mohri. "Generic epsilon-removal and input epsilon-normalization
-//   algorithms for weighted transducers", International Journal of Computer
-//   Science, 13(1): 129-143, 2002.
-template <class Arc>
-void EpsNormalize(const Fst<Arc> &ifst, MutableFst<Arc> *ofst,
-                      EpsNormalizeType type = EPS_NORM_INPUT) {
-  VectorFst< GallicArc<Arc, STRING_RIGHT_RESTRICT> > gfst;
-  if (type == EPS_NORM_INPUT)
-    ArcMap(ifst, &gfst, ToGallicMapper<Arc, STRING_RIGHT_RESTRICT>());
-  else // type == EPS_NORM_OUTPUT
-    ArcMap(InvertFst<Arc>(ifst), &gfst,
-           ToGallicMapper<Arc, STRING_RIGHT_RESTRICT>());
-  RmEpsilon(&gfst);
-  FactorWeightFst< GallicArc<Arc, STRING_RIGHT_RESTRICT>,
-    GallicFactor<typename Arc::Label,
-      typename Arc::Weight, STRING_RIGHT_RESTRICT> >
-    fwfst(gfst);
-  ArcMap(fwfst, ofst, FromGallicMapper<Arc, STRING_RIGHT_RESTRICT>());
-  ofst->SetOutputSymbols(ifst.OutputSymbols());
-  if(type == EPS_NORM_OUTPUT)
-    Invert(ofst);
-}
-
-}  // namespace fst
-
-#endif  // FST_LIB_EPSNORMALIZE_H__