a-a a-c a-t aaa aac aak aam aao aas aat ac- aca acc ack acm aco acs act aka akc akk akm ako aks ama amc amk amm amo ams amt aoa aoc aok aom aoo aos aot as- asa asc ask asm aso ass ast at- ata atc atm ato ats att c-- caa cac cak cam cao cas cat cca ccc cck ccm cco ccs cct cka ckc ckm cko cks ckt cma cmc cmk cmm cmo cms cmt co- coa coc cok com coo cos cot csa csc csk csm cso css cst cta ctc ctk ctm cto cts ctt k-t ka- kaa kac kak kam kao kas kat kca kcc kck kcm kcs kct kkc kkk kkm kks kkt kma kmc kmk kmm kmo kms kmt koa koc kok kom koo kos kot ksa ksc ksk ksm kso kss kst kta ktc ktk ktm kto kts ktt m-o maa mac mak mam mao mas mat mc- mca mcc mck mcm mco mcs mct mka mkc mkk mkm mko mks mkt mma mmc mmk mmm mmo mms mmt moa moc mok mom moo mos mot msa msc msk msm mso mss mst mta mtc mtk mtm mto mts mtt oaa oac oak oam oao oas oat oc- oca occ ock ocm oco ocs oct oka okc okk oko oks om- oma omc omm omo oms omt oo- ooa ooc ook oom ooo oos oot os- osa osc osk osm oso oss ost ot- ota otc otk otm oto ots ott saa sac sak sam sao sas sat sca scc sck scm sco scs sct sk- ska skc skk skm sko sks skt sma smc smk smm smo sms smt soa soc sok som soo sos sot ss- ssa ssc ssk ssm sso sss sst sta stc stk stm sto sts stt taa tac tak tam tao tas tat tca tcc tck tcm tco tcs tct tka tkc tkk tkm tko tks tkt tma tmc tmk tmm tmo tms tmt to- toa toc tok tom too tos tot tsa tsc tsk tsm tso tss tst tta ttc ttk ttm tto tts ttt