Blurb:

We return to the concrete via scrutiny of a self-contained subsystem of the EST, the CSys, which deals with the fate of consonants, illustrating how the MOAT functions as a tool of typological analysis. We derive the MOAT and show that simple graphical operations on the MOAT parallel union of grammars in the typology, characterizing the result, when licit, as a generalization of the original typology, revealing aspects of its structure.