17. The computer-implemented method of claim 16 wherein a first symbol is used to represent a missing leading consonant in each three-set token comprising zero leading consonants.
17. The computer-implemented method of claim 16 wherein a first symbol is used to represent a missing leading consonant in each three-set token comprising zero leading consonants. 18. The computer-implemented method of claim 17 wherein a second symbol is used to represent a missing vowel in each three-set token comprising zero vowels.