-er a-a a-c a-t aaa aac aae aaj aak aao aar aas aat ac- aca acc ace acj ack aco acr acs act aea aec aee aej aek aeo aer aes aet aja ajc aje ajj ajk ajo ajr ajs ajt aka akc ake akj akk ako akr aks aoa aoc aoe aoj aok aoo aor aos aot ar- ara arc are arj ark aro arr ars art as- asa asc ase asj ask aso asr ass ast at- ata atc ate ato atr ats att c-- c-j caa cac cae caj cak cao car cas cat cca ccc cce ccj cck cco ccr ccs cct ce- cea cec cee cej cek ceo cer ces cet cja cjc cjk cjr cjs cka ckc cko cks ckt co- coa coc coe coj cok coo cor cos cot cra crc cre crj crk cro crr crs crt csa csc cse csj csk cso csr css cst cta ctc cte ctk cto ctr cts ctt eaa eac eae eaj eak eao ear eas eat ec- eca ecc ece ecj eck eco ecr ecs ect eea eec eee eek eeo eer ees eet eja ejc ejo ejt eka ekc eke eko ekr eks ekt eo- eoa eoc eoe eok eoo eor eos eot era erc ere erk ero err ers ert es- esa esc ese esk eso esr ess est eta etc ete etj etk eto etr ets ett jaa jac jae jaj jak jao jar jas jat jca jcc jce jck jco jcr jcs jct jea jec jee jej jek jeo jer jes jet jja jjc jjj jjk jjr jjs jka jkk jko jkr jks jkt joa joc joe joj jok joo jor jos jot jra jrc jrk jro jrr jrs jrt jsa jsc jse jsj jsk jso jsr jss jst jta jtc jte jtk jtr jts jtt k-t ka- kaa kac kae kaj kak kao kar kas kat kca kcc kce kck kcr kcs kct ke- kea kec kee kek keo ker kes ket kjc kje kjr kjs kkc kke kkk kkr kks kkt koa koc koe kok koo kor kos kot kra krc krk kro krr krs krt ksa ksc kse ksk kso ksr kss kst kta ktc kte ktj ktk kto ktr kts ktt oaa oac oae oaj oak oao oar oas oat oc- oca occ ocj ock oco ocr ocs oct oea oec oee oeo oer oes oet oja ojc oje ojo ojs oka okc oke okj okk oko okr oks oo- ooa ooc ook ooo oor oos oot or- ora orc ore ork oro orr ors ort os- osa osc ose osj osk oso osr oss ost ot- ota otc ote otk oto otr ots ott ra- raa rac rae raj rak rao rar ras rat rca rcc rce rcj rco rcr rcs rct re- rea rec ree rek reo rer res ret rja rjc rjk rjr rkc rke rkk rko rks rkt roa roc roe roj rok roo ror ros rot rra rrc rrk rrr rrs rrt rsa rsc rse rsj rsk rso rsr rss rst rta rtc rte rtj rtk rto rtr rts rtt saa sac sae saj sak sao sar sas sat sca scc sce scj sck sco scr scs sct se- sea sec see sej sek seo ser ses set sja sjc sje sjj sjk sjr sjs sjt sk- ska skc ske skj skk sko skr sks skt soa soc soe soj sok soo sor sos sot sr- sra src sre srj srk sro srr srs srt ss- ssa ssc sse ssj ssk sso ssr sss sst sta stc ste stj stk sto str sts stt taa tac tae taj tak tao tar tas tat tca tcc tce tcj tck tco tcr tcs tct te- tea tec tee tej tek teo ter tes tet tjc tje tjo tjr tjs tka tkc tke tkk tko tkr tks tkt to- toa toc toe toj tok too tor tos tot tra trc tre trk tro trr trs trt tsa tsc tse tsj tsk tso tsr tss tst tta ttc tte ttk tto ttr tts ttt