a-a a-c a-t aaa aac aak aam aao aar aat ac- aca acc ack acm aco acr act aka akc akk akm ako akr ama amc amk amm amo amr amt aoa aoc aok aom aoo aor aot ar- ara arc ark arm aro arr art at- ata atc atm ato atr att c-- caa cac cak cam cao car cat cca ccc cck ccm cco ccr cct cka ckc ckm cko ckt cma cmc cmk cmm cmo cmr cmt co- coa coc cok com coo cor cot cra crc crk crm cro crr crt cta ctc ctk ctm cto ctr ctt k-t ka- kaa kac kak kam kao kar kat kca kcc kck kcm kcr kct kkc kkk kkm kkr kkt kma kmc kmk kmm kmo kmt koa koc kok kom koo kor kot kra krc krk kro krr krt kta ktc ktk ktm kto ktr ktt m-o m-r maa mac mak mam mao mar mat mc- mca mcc mck mcm mco mcr mct mka mkc mkk mkm mko mkr mkt mma mmc mmk mmm mmo mmr mmt moa moc mok mom moo mor mot mra mrc mrk mrm mro mrr mrt mta mtc mtk mtm mto mtr mtt oaa oac oak oam oao oar oat oc- oca occ ock ocm oco ocr oct oka okc okk oko okr om- oma omc omm omo omr omt oo- ooa ooc ook oom ooo oor oot or- ora orc ork orm oro orr ort ot- ota otc otk otm oto otr ott ra- raa rac rak ram rao rar rat rca rcc rcm rco rcr rct rkc rkk rkm rko rkt rma rmc rmm rmo rmr rmt roa roc rok rom roo ror rot rra rrc rrk rrm rrr rrt rta rtc rtk rtm rto rtr rtt taa tac tak tam tao tar tat tca tcc tck tcm tco tcr tct tka tkc tkk tkm tko tkr tkt tma tmc tmk tmm tmo tmr tmt to- toa toc tok tom too tor tot tra trc trk trm tro trr trt tta ttc ttk ttm tto ttr ttt