a-a a-t a-z aaa aak aao aas aat aaz aka akk ako aks aoa aok aoo aos aot as- asa ask aso ass ast asz at- ata ato ats att atz az- aza azo azs azt azz k-t k-z ka- kaa kak kao kas kat kaz kkk kks kkt koa kok koo kos kot koz ksa ksk kso kss kst kta ktk kto kts ktt kzo oaa oak oao oas oat oka okk oko oks oo- ooa ook ooo oos oot os- osa osk oso oss ost ot- ota otk oto ots ott otz oza ozo ozs ozt ozz saa sak sao sas sat saz sk- ska skk sko sks skt soa sok soo sos sot soz ss- ssa ssk sso sss sst ssz sta stk sto sts stt stz sza taa tak tao tas tat taz tka tkk tko tks tkt tkz to- toa tok too tos tot toz tsa tsk tso tss tst tta ttk tto tts ttt tza tzs zaa zak zao zas zat zaz zka zks zo- zoa zok zoo zos zot zsa zst zsz zta zzs zzt zzz