In this talk, I extend
Extensible Dependency Grammar (XDG) (Debusmann et al. 2004)
with the new notion of "groups". Groups are a higher level of
lexical organization, and essentially allow to store dependency
subgraphs in the lexicon, instead of just singular nodes.
We show how this idea helps us to give an account of
natural language realization in XDG.
This talk builds on a project from last year's summer school ("Realization
with XDG").