Can LAAFU effects be modeled?

[Jorge_Stolfi]

for first lines, 85% of cases start with one of 'p t k f' (in descending order of frequency).

IIRC, the first word of each paragraph generally does not occur elsewhere in the book, not even on the same page.  If that is because if p t k f are "capitalized" versions of other letters, could it be that variants of that word with the first gallows replaced by some non-gallows letter do appear elsewhere? 


All the best, --jorge