-er a-a a-c a-t aaa aac aae aaj aak aar aas aat ac- aca acc ace acj ack acr acs act aea aec aee aej aek aer aes aet aja ajc aje ajj ajk ajr ajs ajt aka akc ake akj akk akr aks ar- ara arc are arj ark arr ars art as- asa asc ase asj ask asr ass ast at- ata atc ate atr ats att c-- c-j caa cac cae caj cak car cas cat cca ccc cce ccj cck ccr ccs cct ce- cea cec cee cej cek cer ces cet cja cjc cjk cjr cjs cka ckc cks ckt cra crc cre crj crk crr crs crt csa csc cse csj csk csr css cst cta ctc cte ctk ctr cts ctt eaa eac eae eaj eak ear eas eat ec- eca ecc ece ecj eck ecr ecs ect eea eec eee eek eer ees eet eja ejc ejt eka ekc eke ekr eks ekt era erc ere erk err ers ert es- esa esc ese esk esr ess est eta etc ete etj etk etr ets ett jaa jac jae jaj jak jar jas jat jca jcc jce jck jcr jcs jct jea jec jee jej jek jer jes jet jja jjc jjj jjk jjr jjs jka jkk jkr jks jkt jra jrc jrk jrr jrs jrt jsa jsc jse jsj jsk jsr jss jst jta jtc jte jtk jtr jts jtt k-t ka- kaa kac kae kaj kak kar kas kat kca kcc kce kck kcr kcs kct ke- kea kec kee kek ker kes ket kjc kje kjr kjs kkc kke kkk kkr kks kkt kra krc krk krr krs krt ksa ksc kse ksk ksr kss kst kta ktc kte ktj ktk ktr kts ktt ra- raa rac rae raj rak rar ras rat rca rcc rce rcj rcr rcs rct re- rea rec ree rek rer res ret rja rjc rjk rjr rkc rke rkk rks rkt rra rrc rrk rrr rrs rrt rsa rsc rse rsj rsk rsr rss rst rta rtc rte rtj rtk rtr rts rtt saa sac sae saj sak sar sas sat sca scc sce scj sck scr scs sct se- sea sec see sej sek ser ses set sja sjc sje sjj sjk sjr sjs sjt sk- ska skc ske skj skk skr sks skt sr- sra src sre srj srk srr srs srt ss- ssa ssc sse ssj ssk ssr sss sst sta stc ste stj stk str sts stt taa tac tae taj tak tar tas tat tca tcc tce tcj tck tcr tcs tct te- tea tec tee tej tek ter tes tet tjc tje tjr tjs tka tkc tke tkk tkr tks tkt tra trc tre trk trr trs trt tsa tsc tse tsj tsk tsr tss tst tta ttc tte ttk ttr tts ttt