anchor.diff:  1,"CC-BY-NC-SA 3.0"
   3,"CC BY-SA 3.0"
   8,"CC BY-NC-SA 3.0"
  +1,"CC BY 3.0"
  +1,"CC Attribution Non-Commercial"
   2,"BSD3"
   1,"BSD-3-Clause"
   1,"BSD-3-clause"
   5,"BSD-3"
  -2,"BSD-2-Clause"
  -1,"BSD-2"
  +4,"BSD-2-Clause"
  +2,"BSD-2"
  +146,"BSD"
   2,"bsd"
  -145,"BSD"
   1,"BSD or AFL"
   1,"BSD New"
   1,"BSD Clause 2"
  -16,"BSD 3-Clause"
  -3,"BSD 3-clause"
  +4,"BSD 3-clause"
  +17,"BSD 3-Clause"
   1,"BSD 3 Clause"
   6,"BSD 2-Clause"
   1,"BSD + MPL 1.1/GPL 2.0/LGPL 2.1"
   1,"BSD (3-clause)"
   1,"BSD (2-Clause)"
  +1,"Boost"
   3,"Beerware"
   1,"BEER"
   1,"BAT"
  
positive.code: 1,"APL"
  1,"APL 2.0"
  1,"apachev2"
  1,"APACHE2_0"
  1,"Apache2.0"
  1,"apache2"
  7,"Apache2"
  19,"APACHE2"
  1,"APACHE-2.0"
  1,"apache-2.0"
  5,"Apache-2.0"
  2,"APACHE-2"
  3,"Apache-2"
  1,"Apache, Version 2.0"
  19,"Apache"
  4,"APACHE"
  3,"apache"
  9,"Apache v2"
  5,"Apache V2"
  2,"Apache v2 License"
  1,"Apache Public License 2.0"
  25,"Apache License, Version 2.0"
  1,"Apache License, v2.0"
  1,"Apache License"
  12,"Apache License Version 2.0"
  1,"Apache License version 2"
  6,"Apache License V2.0"
  2,"Apache License v2"
  23,"Apache License 2.0"
  12,"Apache License (2.0)"
  1,"Apache Licence 2.0"
  158,"Apache 2.0"
  20,"Apache 2"
  3,"APACHE 2"
  2,"ALv2"
  1,"All right reserved."
  1,"all of them"
  6,"AGPL3"
  4,"AGPL-3"
  9,"AGPL"
  3,"ACE"
  1,"Academic Free License 3.0 (AFL-3.0)"
  3,"3-Clause BSD"
  2,"3-clause BSD"
  1,"2-clause BSDL"
  
negative.code: 1,"NIT"
  1,"New-BSD"
  2,"New BSD"
  2,"New BSD license"
  6,"New BSD License"
  1,"NEEV"
  1,"MSU"
  2,"MPLv2"
  