cg3 software package provides Tools for using the 3rd edition of Constraint Grammar (CG-3), you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cg3
cg3 is installed in your system.
Make ensure the cg3 package were installed using the commands given below,
$ sudo dpkg-query -l | grep cg3 *
You will get with cg3 package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Science |
| Package | cg3 |
| Version | 0.9.9~r11624-1+b2 [mips, mips6 |
| Description | Tools for using the 3rd edition of Constraint Grammar (CG-3) |
| Sub Section | Science |