Copyright (C) 2010 by Digital Silk Road, 2017 Linas Valiukas, 2020 Nicolas Remond.

Portions Copyright (C) 2005 by Philip Koehn and Josh Schroeder (used with permission).

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation, either version 3 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 Lesser General Public License for more
details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see
<http://www.gnu.org/licenses/>.