The TRIPS STEP system is the system we used for the STEP Symposium 2008 shared task, parsing paragraphs.

This git repo is a mirror of the TRIPS step CVS module. It is updated nightly.

STEP can be installed easily but inefficiently using Vagrant with src/Systems/STEP/Vagrantfile. Even if you don't plan to use Vagrant, reading that file may help you to install STEP.

Note that the src/config/lisp/defsystem/defsystem-3.6i/ directory contains a modified, non-standard, non-official version of MK:DEFSYSTEM 3.6i. See the comments near the top of defsystem.lisp in that directory for its copyright notice and license.

Also note that the src/bioagents_trips/ directory is from HMS' bioagents repo (specifically bioagents/trips/) and is copyright (c) 2015, Bioagents Developers, under a BSD 2-clause license; see src/bioagents_trips/LICENSE.

The rest of the repository is licensed using the GPL 2+ (see gpl-2.0.txt):

TRIPS STEP system
Copyright (C) 2016 Institute for Human & Machine Cognition

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.