-er a-a a-c a-t aaa aac aae aaj aar aas aat ac- aca acc ace acj acr acs act aea aec aee aej aer aes aet aja ajc aje ajj ajr ajs ajt ar- ara arc are arj arr ars art as- asa asc ase asj asr ass ast at- ata atc ate atr ats att c-- c-j caa cac cae caj car cas cat cca ccc cce ccj ccr ccs cct ce- cea cec cee cej cer ces cet cja cjc cjr cjs cra crc cre crj crr crs crt csa csc cse csj csr css cst cta ctc cte ctr cts ctt eaa eac eae eaj ear eas eat ec- eca ecc ece ecj ecr ecs ect eea eec eee eer ees eet eja ejc ejt era erc ere err ers ert es- esa esc ese esr ess est eta etc ete etj etr ets ett jaa jac jae jaj jar jas jat jca jcc jce jcr jcs jct jea jec jee jej jer jes jet jja jjc jjj jjr jjs jra jrc jrr jrs jrt jsa jsc jse jsj jsr jss jst jta jtc jte jtr jts jtt ra- raa rac rae raj rar ras rat rca rcc rce rcj rcr rcs rct re- rea rec ree rer res ret rja rjc rjr rra rrc rrr rrs rrt rsa rsc rse rsj rsr rss rst rta rtc rte rtj rtr rts rtt saa sac sae saj sar sas sat sca scc sce scj scr scs sct se- sea sec see sej ser ses set sja sjc sje sjj sjr sjs sjt sr- sra src sre srj srr srs srt ss- ssa ssc sse ssj ssr sss sst sta stc ste stj str sts stt taa tac tae taj tar tas tat tca tcc tce tcj tcr tcs tct te- tea tec tee tej ter tes tet tjc tje tjr tjs tra trc tre trr trs trt tsa tsc tse tsj tsr tss tst tta ttc tte ttr tts ttt