a-a a-b a-i a-t aaa aab aai aat aav aay ab- aba abb abi abt abv aby ai- aia aib aii ait aiv aiy at- ata atb ati att atv av- ava avb avi avt avy ay- aya ayi ayt baa bab bai bat bav bay bba bbb bbi bbt bby bi- bia bib bii bit biv biy bta btb bti btt btv bty bva bvb bvi bvt bvv by- bya byi byt i-v ia- iaa iab iai iat iav iba ibb ibi ibt ibv iby iia iib iii iit ita itb iti itt itv ity iva ivb ivi ivt ivv ivy iya iyt iyy taa tab tai tat tav tay tba tbb tbi tbt tbv tia tib tii tit tiv tiy tta ttb tti ttt ttv tty tva tvb tvi tvt tvy tya tyt v-a vaa vab vai vat vav vay vba vbi vbv vi- via vib vii vit viv viy vta vtb vti vtt vtv vty vva vvb vvi vvt vvv vyt yaa yab yai yat yav yay ybi yby yii yit yta ytt ytv yva yvi yvy yyb yyt yyy