These are the magic numbers! If you are doing ranges or randoms, you can restrict the length of the words generated by using these numbers. For instance, all sounds are one syllable when it's 1-40, two from 41-1800, three from 1801-90000, etc. 0 is no sound.
keep last syllable: keep first, and last syllable: keep first, last, and second to the last syllable: keep first, last, second to the last, and third to the last syllable: top number:
40 1,800 90,000 4,500,000 225,000,000