a-a a-b a-i aaa aab aad aai aau aay ab- aba abb abd abi abu aby ad- ada adb add adi adu ady ai- aia aib aid aii aiu aiy au- aua aub aud aui ay- aya ayd ayi ayu b-u baa bab bad bai bau bay bba bbb bbd bbi bbu bby bda bdb bdd bdi bdu bdy bi- bia bib bid bii biu biy bua bub bud bui buu buy by- bya byd byi byu daa dab dad dai dau day dba dbb dbd dbi dbu dby dda ddb ddd ddi ddu ddy di- dia dib did dii diu diy dua dub dud dui duy dy- dya dyb dyd dyu dyy i-d ia- iaa iab iad iai iau iba ibb ibd ibi ibu iby ida idb idd idi idu idy iia iib iid iii iiu iu- iua iub iud iui iya iyy ua- uaa uab uad uai uau uay uba ubb ubi ubu uby uda udb udd udi udu uia uib uid uii uiu uua uuu uyi uyu yaa yab yad yai yau yay ybi yby yda ydy yid yii yua yud yui yuu yuy yyb yyu yyy