A family of grammars for Voynichese

[Grove]

Including ii as a bench ("X") would allow words like iiky or iiody, which do not seem to occur.  Thus I accept i, ii, and iii only as parts of the coda ("N") elements, which in the CMC model can occur only at the end of the word (apart from following "O", maybe).

Since ee as a bench can’t create words like eeky or eeody , 
I don’t see how treating ii like ee would result in words like iiky or iiody