malaga-bin binary package in Ubuntu Bionic arm64

 Malaga is a system for implementing natural language analysers:
 both grammars and morphologies can be created.
 You will not be needing this package if you do not intend
 to do research on computer linguistics or develop computer
 programs that need to do advanced processing of natural
 languages.
 .
 This package contains a set of standalone programs that can be
 used in developing and playing with grammars and morphologies.
 One of the programs uses a Tk/TCL module for displaying
 graphical analysis trees.

Source package