a-a a-c a-t aaa aac aam aao aap aar aat ac- aca acc acm aco acp acr act ama amc amm amo amp amr amt aoa aoc aom aoo aop aor aot ap- apa apc apm apo app apr apt ar- ara arc arm aro arp arr art at- ata atc atm ato atp atr att c-- caa cac cam cao cap car cat cca ccc ccm cco ccp ccr cct cma cmc cmm cmo cmp cmr cmt co- coa coc com coo cop cor cot cpa cpc cpm cpo cpp cpr cpt cra crc crm cro crp crr crt cta ctc ctm cto ctp ctr ctt m-o m-r maa mac mam mao map mar mat mc- mca mcc mcm mco mcp mcr mct mma mmc mmm mmo mmp mmr mmt moa moc mom moo mop mor mot mpa mpc mpm mpo mpp mpr mpt mra mrc mrm mro mrp mrr mrt mta mtc mtm mto mtp mtr mtt oaa oac oam oao oap oar oat oc- oca occ ocm oco ocp ocr oct om- oma omc omm omo omp omr omt oo- ooa ooc oom ooo oop oor oot op- opa opc opm opo opp opr opt or- ora orc orm oro orp orr ort ot- ota otc otm oto otp otr ott p-p paa pac pam pao pap par pat pca pcc pcm pco pcp pcr pct pma pmc pmm pmo pmp pmr pmt poa poc pom poo pop por pot ppa ppc ppm ppo ppp ppr ppt pra prc prm pro prp prr prt pt- pta ptc ptm pto ptp ptr ptt ra- raa rac ram rao rap rar rat rca rcc rcm rco rcp rcr rct rma rmc rmm rmo rmp rmr rmt roa roc rom roo rop ror rot rpa rpc rpm rpo rpp rpr rpt rra rrc rrm rrp rrr rrt rta rtc rtm rto rtp rtr rtt taa tac tam tao tap tar tat tca tcc tcm tco tcp tcr tct tma tmc tmm tmo tmp tmr tmt to- toa toc tom too top tor tot tpa tpc tpm tpo tpp tpr tpt tra trc trm tro trp trr trt tta ttc ttm tto ttp ttr ttt