-th a-a a-t aaa aad aah aao aat ad- ada add adh ado adt aha ahd ahh aho aht aoa aod aoh aoo aot at- ata atd ath ato att daa dad dah dao dat dda ddd ddh ddo ddt dh- dha dhd dhh dho dht doa dod doh doo dot dta dtd dth dto dtt haa had hah hao hat hda hdd hdh hdo hdt hha hhd hhh hho hht hoa hod hoh hoo hot hta htd hth hto htt oaa oad oah oao oat oda odd odh odo odt oha ohd ohh oho oht oo- ooa ood ooh ooo oot ot- ota otd oth oto ott taa tad tah tao tat tda tdd tdh tdo tdt th- tha thd thh tho tht to- toa tod toh too tot tta ttd tth tto ttt