-er a-a a-c a-t aaa aac aae aam aar aas aat aau ac- aca acc ace acm acr acs act acu aea aec aee aem aer aes aet aeu ama amc ame amm amr ams amt amu ar- ara arc are arm arr ars art aru as- asa asc ase asm asr ass ast asu at- ata atc ate atm atr ats att atu au- aua auc aue aum aur aus aut c-- caa cac cae cam car cas cat cau cca ccc cce ccm ccr ccs cct ccu ce- cea cec cee cem cer ces cet ceu cma cmc cme cmm cmr cms cmt cmu cra crc cre crm crr crs crt cru csa csc cse csm csr css cst csu cta ctc cte ctm ctr cts ctt ctu cua cuc cue cum cur cus cut cuu eaa eac eae eam ear eas eat eau ec- eca ecc ece ecm ecr ecs ect ecu eea eec eee eem eer ees eet em- ema emc eme emm emr ems emt emu era erc ere erm err ers ert eru es- esa esc ese esm esr ess est esu eta etc ete etm etr ets ett etu eu- eua euc eue eur eus eut m-r maa mac mae mam mar mas mat mau mc- mca mcc mce mcm mcr mcs mct mcu mea mec mee mem mer mes met meu mma mmc mme mmm mmr mms mmt mmu mra mrc mre mrm mrr mrs mrt mru msa msc mse msm msr mss mst msu mta mtc mte mtm mtr mts mtt mtu mua muc mue mum mur mus mut muu ra- raa rac rae ram rar ras rat rau rca rcc rce rcm rcr rcs rct rcu re- rea rec ree rem rer res ret reu rma rmc rme rmm rmr rms rmt rra rrc rrm rrr rrs rrt rru rsa rsc rse rsm rsr rss rst rsu rta rtc rte rtm rtr rts rtt rtu rua ruc rue rum rur rus rut ruu saa sac sae sam sar sas sat sau sca scc sce scm scr scs sct scu se- sea sec see sem ser ses set seu sma smc sme smm smr sms smt smu sr- sra src sre srm srr srs srt ss- ssa ssc sse ssm ssr sss sst ssu sta stc ste stm str sts stt stu sua suc sue sum sur sus sut suu taa tac tae tam tar tas tat tau tca tcc tce tcm tcr tcs tct tcu te- tea tec tee tem ter tes tet teu tma tmc tme tmm tmr tms tmt tmu tra trc tre trm trr trs trt tru tsa tsc tse tsm tsr tss tst tsu tta ttc tte ttm ttr tts ttt ttu tua tuc tue tum tur tus tut tuu ua- uaa uac uae uam uar uas uat uau uca ucc uce ucm ucr ucs uct ucu uea uec uee uem uer ues uet um- uma umc ume umm umr ums umt umu ur- ura urc ure urm urr urs urt uru usa usc use usm usr uss ust usu uta utc ute utm utr uts utt utu uua uuc uue uum uur uus uut uuu