a-a a-b a-i aaa aab aad aah aai ab- aba abb abd abh abi ad- ada adb add adh adi aha ahb ahd ahh ahi ai- aia aib aid aih aii baa bab bad bah bai bba bbb bbd bbh bbi bda bdb bdd bdh bdi bha bhb bhd bhh bhi bi- bia bib bid bih bii daa dab dad dah dai dba dbb dbd dbh dbi dda ddb ddd ddh ddi dh- dha dhb dhd dhh dhi di- dia dib did dih dii h-i haa hab had hah hai hba hbb hbd hbh hbi hda hdb hdd hdh hdi hha hhb hhd hhh hhi hia hib hid hih hii i-d ia- iaa iab iad iah iai iba ibb ibd ibh ibi ida idb idd idh idi iha ihb ihd ihh ihi iia iib iid iih iii