a-a a-b a-i aaa aab aad aah aai aao aay ab- aba abb abd abh abi abo aby ad- ada adb add adh adi ado ady aha ahb ahd ahh ahi aho ahy ai- aia aib aid aih aii aio aiy aoa aob aod aoh aoi aoo ay- aya ayd ayh ayi ayo baa bab bad bah bai bao bay bba bbb bbd bbh bbi bbo bby bda bdb bdd bdh bdi bdo bdy bha bhb bhd bhh bhi bho bi- bia bib bid bih bii bio biy boa bob bod boh boi boo boy by- bya byd byh byi byo daa dab dad dah dai dao day dba dbb dbd dbh dbi dbo dby dda ddb ddd ddh ddi ddo ddy dh- dha dhb dhd dhh dhi dho di- dia dib did dih dii dio diy doa dob dod doh doi doo doy dy- dya dyb dyd dyo dyy h-i haa hab had hah hai hao hay hba hbb hbd hbh hbi hbo hby hda hdb hdd hdh hdi hdo hdy hha hhb hhd hhh hhi hho hhy hia hib hid hih hii hio hoa hob hod hoh hoi hoo hoy hy- hya hyb hyd hyh hyi hyo hyy i-d ia- iaa iab iad iah iai iao iba ibb ibd ibh ibi ibo iby ida idb idd idh idi ido idy iha ihb ihd ihh ihi iho ihy iia iib iid iih iii iio io- ioa iob iod ioh ioi ioo iya iyo iyy o-i oaa oab oad oah oai oao ob- oba obb obd obh obi obo oby oda odb odd odh odi odo oha ohd ohh ohi oho oia oib oid oii oio oo- ooa oob ood ooh ooi ooo oya oyd oyi oyo yaa yab yad yah yai yao yay ybi yby yda ydo ydy yha yhi yid yih yii yio yob yod yoi yoo yoy yyb yyy