-th a-a a-b a-i a-t aaa aab aad aah aai aat aay ab- aba abb abd abh abi abt aby ad- ada adb add adh adi adt ady aha ahb ahd ahh ahi aht ahy ai- aia aib aid aih aii ait aiy at- ata atb atd ath ati att ay- aya ayd ayh ayi ayt baa bab bad bah bai bat bay bba bbb bbd bbh bbi bbt bby bda bdb bdd bdh bdi bdt bdy bha bhb bhd bhh bhi bht bi- bia bib bid bih bii bit biy bta btb btd bth bti btt bty by- bya byd byh byi byt daa dab dad dah dai dat day dba dbb dbd dbh dbi dbt dby dda ddb ddd ddh ddi ddt ddy dh- dha dhb dhd dhh dhi dht di- dia dib did dih dii dit diy dta dtb dtd dth dti dtt dty dy- dya dyb dyd dyy h-i haa hab had hah hai hat hay hba hbb hbd hbh hbi hbt hby hda hdb hdd hdh hdi hdt hdy hha hhb hhd hhh hhi hht hhy hia hib hid hih hii hit hta htb htd hth hti htt hty hy- hya hyb hyd hyh hyi hyt hyy i-d ia- iaa iab iad iah iai iat iba ibb ibd ibh ibi ibt iby ida idb idd idh idi idt idy iha ihb ihd ihh ihi iht ihy iia iib iid iih iii iit ita itb itd ith iti itt ity iya iyt iyy taa tab tad tah tai tat tay tba tbb tbd tbh tbi tbt tda tdb tdd tdh tdi tdt tdy th- tha thb thd thh thi tht thy tia tib tid tih tii tit tiy tta ttb ttd tth tti ttt tty tya tyd tyt yaa yab yad yah yai yat yay ybi yby yda ydt ydy yha yhi yht yid yih yii yit yta ytd yth ytt yyb yyt yyy