====== Rule Based System ======

  * https://nebrios.com/blog/implimenting-a-rules-engine-in-python
  * http://pyke.sourceforge.net/
  * https://sites.google.com/site/pydatalog/home
  * https://pypi.python.org/pypi/Intellect
  * http://potassco.sourceforge.net/teaching.html