a-a a-b a-i aaa aab aad aai aak aav aay ab- aba abb abd abi abk abv aby ad- ada adb add adi adk adv ady ai- aia aib aid aii aik aiv aiy aka akb akd aki akk akv av- ava avb avd avi avk avy ay- aya ayd ayi ayk baa bab bad bai bak bav bay bba bbb bbd bbi bbk bby bda bdb bdd bdi bdk bdv bdy bi- bia bib bid bii bik biv biy bka bkb bkk bkv bva bvb bvd bvi bvk bvv by- bya byd byi byk daa dab dad dai dak dav day dba dbb dbd dbi dbk dbv dby dda ddb ddd ddi ddk ddy di- dia dib did dii dik div diy dka dkb dki dkk dva dvb dvd dvi dvk dy- dya dyb dyd dyk dyy i-d i-v ia- iaa iab iad iai iav iba ibb ibd ibi ibk ibv iby ida idb idd idi idk idv idy iia iib iid iii ika ikb iki ikk ikv iva ivb ivd ivi ivv ivy iya iyy ka- kaa kab kad kai kak kav kay kba kbb kbd kbi kbk kda kdb kdk kdy kia kib kid kii kik kiv kkb kki kkk kkv kky kva kvb kvi kvk kvv kya kyd v-a vaa vab vad vai vak vav vay vba vbd vbi vbk vbv vdb vdd vdi vdk vdv vi- via vib vid vii vik viv viy vka vkb vva vvb vvi vvv vyd yaa yab yad yai yak yav yay ybi yby yda ydy yid yii yka yki ykk yva yvi yvy yyb yyy