The main advantage of the word grammar comes from its parallel to linguistic grammars. Linguistic grammars define types of signifiers and set up rules for their combination.
Places have regions and items that are distinguished from one another, and related to stages of action. Just as grammatical norms transform sequences of marks into statements and texts, so place norms transform areas and doings into places and trajectories of action. The norms of a place thus can be said to resemble the norms of language.
(c) David Kolb, 1 August 2001