NLP for Common Lisp, written by Ian Eslick.  Now maintained by Kevin Raison.

This software is Copyright (c) Ian Eslick & Kevin Raison, March 19, 2011.
Iam Eslick & Kevin Raison grant you the rights to distribute and use this 
software as governed by the terms of the Lisp Lesser GNU Public License
(http://opensource.franz.com/preamble.html), known as the LLGPL.