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,"MIT, Simplified BSD, Apache 2.0"
  2,"MIT, Apache License v2.0"
  2,"mit"
  5388,"MIT"
  1,"MIT or Do whatever you want with this gem!"
  1,"MIT license"
  4,"MIT License"
  1,"MIT and CCPs License for their static dumps"
  1,"MIT (templates may have different licenses)"
  1,"MIT (see LICENSE file)"
  1,"MIT (http://opensource.org/licenses/MIT)"
  1,"Meginfo"
  1,"Lizenz CC BY-NC-SA 3.0"
  3,"LICENSE"
  4,"LGPLv3+"
  8,"LGPLv3"
  3,"LGPLv2.1+"
  1,"LGPLv2.1"
  1,"LGPLv2.1 or later"
  3,"LGPLv2"
  1,"LGPLv2 or later"
  1,"LGPL3"
  2,"LGPL2"
  2,"LGPL-3.0"
  13,"LGPL-3"
  1,"LGPL-2.1"
  23,"LGPL"
  1,"LGPL v2.1"
  1,"LGPL 3.0"
  2,"LAGPL"
  
negative.code: 1,"NIT"
  1,"New-BSD"
  2,"New BSD"
  2,"New BSD license"
  6,"New BSD License"
  1,"NEEV"
  1,"MSU"
  2,"MPLv2"
  