-er a-a a-c a-t aaa aac aae aak aam aao aap aar aas aat ac- aca acc ace ack acm aco acp acr acs act aea aec aee aek aem aeo aep aer aes aet aka akc ake akk akm ako akp akr aks ama amc ame amk amm amo amp amr ams amt aoa aoc aoe aok aom aoo aop aor aos aot ap- apa apc ape apk apm apo app apr aps apt ar- ara arc are ark arm aro arp arr ars art as- asa asc ase ask asm aso asp asr ass ast at- ata atc ate atm ato atp atr ats att c-- caa cac cae cak cam cao cap car cas cat cca ccc cce cck ccm cco ccp ccr ccs cct ce- cea cec cee cek cem ceo cep cer ces cet cka ckc ckm cko cks ckt cma cmc cme cmk cmm cmo cmp cmr cms cmt co- coa coc coe cok com coo cop cor cos cot cpa cpc cpe cpk cpm cpo cpp cpr cps cpt cra crc cre crk crm cro crp crr crs crt csa csc cse csk csm cso csp csr css cst cta ctc cte ctk ctm cto ctp ctr cts ctt eaa eac eae eak eam eao eap ear eas eat ec- eca ecc ece eck ecm eco ecr ecs ect eea eec eee eek eem eeo eep eer ees eet eka ekc eke eko ekp ekr eks ekt em- ema emc eme emk emm emo emp emr ems emt eo- eoa eoc eoe eok eom eoo eop eor eos eot ep- epa epc epe epm epo epp epr eps ept era erc ere erk erm ero erp err ers ert es- esa esc ese esk esm eso esp esr ess est eta etc ete etk etm eto etp etr ets ett k-t ka- kaa kac kae kak kam kao kap kar kas kat kca kcc kce kck kcm kcp kcr kcs kct ke- kea kec kee kek kem keo kep ker kes ket kkc kke kkk kkm kkp kkr kks kkt kma kmc kme kmk kmm kmo kmp kms kmt koa koc koe kok kom koo kop kor kos kot kpa kpc kpe kpk kpm kpo kpp kpr kps kpt kra krc krk kro krp krr krs krt ksa ksc kse ksk ksm kso ksp ksr kss kst kta ktc kte ktk ktm kto ktp ktr kts ktt m-o m-r maa mac mae mak mam mao map mar mas mat mc- mca mcc mce mck mcm mco mcp mcr mcs mct mea mec mee mek mem meo mep mer mes met mka mkc mke mkk mkm mko mkp mkr mks mkt mma mmc mme mmk mmm mmo mmp mmr mms mmt moa moc moe mok mom moo mop mor mos mot mpa mpc mpe mpk mpm mpo mpp mpr mps mpt mra mrc mre mrk mrm mro mrp mrr mrs mrt msa msc mse msk msm mso msp msr mss mst mta mtc mte mtk mtm mto mtp mtr mts mtt oaa oac oae oak oam oao oap oar oas oat oc- oca occ ock ocm oco ocp ocr ocs oct oea oec oee oem oeo oep oer oes oet oka okc oke okk oko okp okr oks om- oma omc ome omm omo omp omr oms omt oo- ooa ooc ook oom ooo oop oor oos oot op- opa opc ope opk opm opo opp opr ops opt or- ora orc ore ork orm oro orp orr ors ort os- osa osc ose osk osm oso osp osr oss ost ot- ota otc ote otk otm oto otp otr ots ott p-p paa pac pae pak pam pao pap par pas pat pca pcc pce pck pcm pco pcp pcr pcs pct pea pec pee pek pem peo pep per pes pet pka pkc pke pkm pko pkp pkr pks pkt pma pmc pme pmk pmm pmo pmp pmr pms pmt poa poc poe pok pom poo pop por pos pot ppa ppc ppe ppk ppm ppo ppp ppr pps ppt pra prc pre prk prm pro prp prr prs prt ps- psa psc pse psk psm pso psp psr pss pst pt- pta ptc pte ptk ptm pto ptp ptr pts ptt ra- raa rac rae rak ram rao rap rar ras rat rca rcc rce rcm rco rcp rcr rcs rct re- rea rec ree rek rem reo rep rer res ret rkc rke rkk rkm rko rkp rks rkt rma rmc rme rmm rmo rmp rmr rms rmt roa roc roe rok rom roo rop ror ros rot rpa rpc rpe rpk rpm rpo rpp rpr rps rpt rra rrc rrk rrm rrp rrr rrs rrt rsa rsc rse rsk rsm rso rsp rsr rss rst rta rtc rte rtk rtm rto rtp rtr rts rtt saa sac sae sak sam sao sap sar sas sat sca scc sce sck scm sco scp scr scs sct se- sea sec see sek sem seo sep ser ses set sk- ska skc ske skk skm sko skp skr sks skt sma smc sme smk smm smo smp smr sms smt soa soc soe sok som soo sop sor sos sot spa spc spe spk spm spo spp spr sps spt sr- sra src sre srk srm sro srp srr srs srt ss- ssa ssc sse ssk ssm sso ssp ssr sss sst sta stc ste stk stm sto stp str sts stt taa tac tae tak tam tao tap tar tas tat tca tcc tce tck tcm tco tcp tcr tcs tct te- tea tec tee tek tem teo tep ter tes tet tka tkc tke tkk tkm tko tkp tkr tks tkt tma tmc tme tmk tmm tmo tmp tmr tms tmt to- toa toc toe tok tom too top tor tos tot tpa tpc tpe tpk tpm tpo tpp tpr tps tpt tra trc tre trk trm tro trp trr trs trt tsa tsc tse tsk tsm tso tsp tsr