a-a a-b a-i aaa aab aad aai aak aau aay ab- aba abb abd abi abk abu aby ad- ada adb add adi adk adu ady ai- aia aib aid aii aik aiu aiy aka akb akd aki akk aku au- aua aub aud aui auk ay- aya ayd ayi ayk ayu b-u baa bab bad bai bak bau bay bba bbb bbd bbi bbk bbu bby bda bdb bdd bdi bdk bdu bdy bi- bia bib bid bii bik biu biy bka bkb bkk bua bub bud bui buk buu buy by- bya byd byi byk byu daa dab dad dai dak dau day dba dbb dbd dbi dbk dbu dby dda ddb ddd ddi ddk ddu ddy di- dia dib did dii dik diu diy dka dkb dki dkk dku dua dub dud dui duk duy dy- dya dyb dyd dyk dyu dyy i-d ia- iaa iab iad iai iau iba ibb ibd ibi ibk ibu iby ida idb idd idi idk idu idy iia iib iid iii iiu ika ikb iki ikk iku iu- iua iub iud iui iya iyy ka- kaa kab kad kai kak kau kay kba kbb kbd kbi kbk kbu kda kdb kdk kdu kdy kia kib kid kii kik kiu kkb kki kkk kku kky kub kud kui kuk kuu kuy kya kyd kyu ua- uaa uab uad uai uak uau uay uba ubb ubi ubk ubu uby uda udb udd udi udk udu uia uib uid uii uiu uka ukb uki ukk uku uua uuu uyi uyu yaa yab yad yai yak yau yay ybi yby yda ydy yid yii yka yki ykk yua yud yui yuk yuu yuy yyb yyu yyy