a-a a-b a-i aaa aab aad aah aai aao ab- aba abb abd abh abi abo ad- ada adb add adh adi ado aha ahb ahd ahh ahi aho ai- aia aib aid aih aii aio aoa aob aod aoh aoi aoo baa bab bad bah bai bao bba bbb bbd bbh bbi bbo bda bdb bdd bdh bdi bdo bha bhb bhd bhh bhi bho bi- bia bib bid bih bii bio boa bob bod boh boi boo daa dab dad dah dai dao dba dbb dbd dbh dbi dbo dda ddb ddd ddh ddi ddo dh- dha dhb dhd dhh dhi dho di- dia dib did dih dii dio doa dob dod doh doi doo h-i haa hab had hah hai hao hba hbb hbd hbh hbi hbo hda hdb hdd hdh hdi hdo hha hhb hhd hhh hhi hho hia hib hid hih hii hio hoa hob hod hoh hoi hoo i-d ia- iaa iab iad iah iai iao iba ibb ibd ibh ibi ibo ida idb idd idh idi ido iha ihb ihd ihh ihi iho iia iib iid iih iii iio io- ioa iob iod ioh ioi ioo o-i oaa oab oad oah oai oao ob- oba obb obd obh obi obo oda odb odd odh odi odo oha ohd ohh ohi oho oia oib oid oii oio oo- ooa oob ood ooh ooi ooo