a-a a-c a-t aaa aac aak aam aao aar aas aat ac- aca acc ack acm aco acr acs act aka akc akk akm ako akr aks ama amc amk amm amo amr ams amt aoa aoc aok aom aoo aor aos aot ar- ara arc ark arm aro arr ars art as- asa asc ask asm aso asr ass ast at- ata atc atm ato atr ats att c-- caa cac cak cam cao car cas cat cca ccc cck ccm cco ccr ccs cct cka ckc ckm cko cks ckt cma cmc cmk cmm cmo cmr cms cmt co- coa coc cok com coo cor cos cot cra crc crk crm cro crr crs crt csa csc csk csm cso csr css cst cta ctc ctk ctm cto ctr cts ctt k-t ka- kaa kac kak kam kao kar kas kat kca kcc kck kcm kcr kcs kct kkc kkk kkm kkr kks kkt kma kmc kmk kmm kmo kms kmt koa koc kok kom koo kor kos kot kra krc krk kro krr krs krt ksa ksc ksk ksm kso ksr kss kst kta ktc ktk ktm kto ktr kts ktt m-o m-r maa mac mak mam mao mar mas mat mc- mca mcc mck mcm mco mcr mcs mct mka mkc mkk mkm mko mkr mks mkt mma mmc mmk mmm mmo mmr mms mmt moa moc mok mom moo mor mos mot mra mrc mrk mrm mro mrr mrs mrt msa msc msk msm mso msr mss mst mta mtc mtk mtm mto mtr mts mtt oaa oac oak oam oao oar oas oat oc- oca occ ock ocm oco ocr ocs oct oka okc okk oko okr oks om- oma omc omm omo omr oms omt oo- ooa ooc ook oom ooo oor oos oot or- ora orc ork orm oro orr ors ort os- osa osc osk osm oso osr oss ost ot- ota otc otk otm oto otr ots ott ra- raa rac rak ram rao rar ras rat rca rcc rcm rco rcr rcs rct rkc rkk rkm rko rks rkt rma rmc rmm rmo rmr rms rmt roa roc rok rom roo ror ros rot rra rrc rrk rrm rrr rrs rrt rsa rsc rsk rsm rso rsr rss rst rta rtc rtk rtm rto rtr rts rtt saa sac sak sam sao sar sas sat sca scc sck scm sco scr scs sct sk- ska skc skk skm sko skr sks skt sma smc smk smm smo smr sms smt soa soc sok som soo sor sos sot sr- sra src srk srm sro srr srs srt ss- ssa ssc ssk ssm sso ssr sss sst sta stc stk stm sto str sts stt taa tac tak tam tao tar tas tat tca tcc tck tcm tco tcr tcs tct tka tkc tkk tkm tko tkr tks tkt tma tmc tmk tmm tmo tmr tms tmt to- toa toc tok tom too tor tos tot tra trc trk trm tro trr trs trt tsa tsc tsk tsm tso tsr tss tst tta ttc ttk ttm tto ttr tts ttt