An attempt at extracting grammar from vord order statistics.

[dashstofsk]

EVA_Q13
qokam 5 : qokain 162 , qokal 104 , qokaiin 87
dam 4 : daiin 76 , dar 57 , dal 51
am 3 : aiin 24 , ar 15 , al 14
ram 3 : raiin 12 , rain 8 , ral 7
lom 3 : lol 17 , lor 10 , lo 5

Also I cannot see much of an abbreviation here. If you were to count how many strokes of the pen have been saved then it would seem not to be much. If the authors really were into abbreviating then there would be more evidence of it throughout the manuscript. Especially in the long text sections of q13 and q20 where the authors had the ordeal of having to write so much.