Parallel Grammar and Parallel Semantics Projects


[C-structure and f-structure for `It works!'] The Lexical Functional Grammar (LFG) ParGram and ParSem projects are a collaborative effort involving researchers in industrial and academic institutions around the world. The aim of the ParGram project is to produce wide coverage grammars for a wide variety of languages. These are written collaboratively within the linguistic framework of LFG and with a commonly-agreed-upon set of grammatical features. The ParSem project develops semantic structures based on the ParGram syntactic structures. Most of the ParSem systems use XLE's XFR system.

About ParGram and ParSem:

Grammar Development

Groups working on developing LFG grammars for different languages on the XLE platform.

Grammar Engineering and Resource Creation

Groups working on LFG related resources, including induction of LFG grammars and of LFG-compatible resources such as subcategorization lexicons.

Semantic Rule Development

Groups working on creating XLE XFR semantic rules for the XLE LFG grammars.


Natural Language Theory and Technology
Palo Alto Research Center
3333 Coyote Hill Rd.
Palo Alto, CA 94304 USA

Last updated by Martin Forst, Friday, 21-Nov-2008 14:50:41 PST