-th a-a a-b a-t aaa aab aad aah aak aat ab- aba abb abd abh abk abt ad- ada adb add adh adk adt aha ahb ahd ahh ahk aht aka akb akd akh akk at- ata atb atd ath att baa bab bad bah bak bat bba bbb bbd bbh bbk bbt bda bdb bdd bdh bdk bdt bha bhb bhd bhh bhk bht bka bkb bkk bkt bta btb btd bth btk btt daa dab dad dah dak dat dba dbb dbd dbh dbk dbt dda ddb ddd ddh ddk ddt dh- dha dhb dhd dhh dhk dht dka dkb dkk dkt dta dtb dtd dth dtk dtt haa hab had hah hak hat hba hbb hbd hbh hbk hbt hda hdb hdd hdh hdk hdt hha hhb hhd hhh hhk hht hka hkb hkd hkh hkk hkt hta htb htd hth htk htt k-t ka- kaa kab kad kah kak kat kba kbb kbd kbh kbk kda kdb kdh kdk kdt kha khh khk kkb kkh kkk kkt kta ktb kth ktk ktt taa tab tad tah tak tat tba tbb tbd tbh tbk tbt tda tdb tdd tdh tdk tdt th- tha thb thd thh thk tht tka tkb tkk tkt tta ttb ttd tth ttk ttt