The NAMS python package calculates the similarity between molecules based on the 
structural/topological relationships of each atom towards all the others 
within a molecule.

This program is free software: you can redistribute it and/or modify
it under the terms of the MIT License as published on the official site of Open Source Initiative
and attached below.

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Copyright (C) 2013, Andre Falcao and Ana Teixeira, University of Lisbon - LaSIGE

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
associated documentation files (the "Software"), to deal in the Software without restriction, including 
without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the 
 following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial 
portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Please cite the authors in any work or product based on this material: 
AL Teixeira, AO Falcao. 2013. A non-contiguous atom matching structural similarity function. J. Chem. Inf. Model. 
DOI: 10.1021/ci400324u.