-er a-a a-c a-t aaa aac aae aan aar aas aat aau ac- aca acc ace acn acr acs act acu aea aec aee aen aer aes aet aeu an- ana anc ane ann anr ans ant anu ar- ara arc are arn arr ars art aru as- asa asc ase asn asr ass ast asu at- ata atc ate atn atr ats att atu au- aua auc aue aun aur aus aut c-- caa cac cae can car cas cat cau cca ccc cce ccn ccr ccs cct ccu ce- cea cec cee cen cer ces cet ceu cn- cna cnc cne cnn cnr cns cnt cnu cra crc cre crn crr crs crt cru csa csc cse csn csr css cst csu cta ctc cte ctn ctr cts ctt ctu cua cuc cue cun cur cus cut cuu eaa eac eae ean ear eas eat eau ec- eca ecc ece ecn ecr ecs ect ecu eea eec eee een eer ees eet en- ena enc ene enn enr ens ent enu era erc ere ern err ers ert eru es- esa esc ese esn esr ess est esu eta etc ete etn etr ets ett etu eu- eua euc eue eun eur eus eut naa nac nae nan nar nas nat nau nca ncc nce ncn ncr ncs nct ncu ne- nea nec nee nen ner nes net neu nna nnc nne nnn nns nnt nnu nra nrc nre nrn nrr nrs nrt nru nsa nsc nse nsn nsr nss nst nsu nta ntc nte ntn ntr nts ntt ntu nua nuc nue nun nur nus nut nuu ra- raa rac rae ran rar ras rat rau rca rcc rce rcn rcr rcs rct rcu re- rea rec ree ren rer res ret reu rna rnc rnn rnr rns rnt rnu rra rrc rrn rrr rrs rrt rru rsa rsc rse rsn rsr rss rst rsu rta rtc rte rtn rtr rts rtt rtu rua ruc rue run rur rus rut ruu saa sac sae san sar sas sat sau sca scc sce scn scr scs sct scu se- sea sec see sen ser ses set seu sna snc sne snn snr sns snt snu sr- sra src sre srn srr srs srt ss- ssa ssc sse ssn ssr sss sst ssu sta stc ste stn str sts stt stu sua suc sue sun sur sus sut suu taa tac tae tan tar tas tat tau tca tcc tce tcn tcr tcs tct tcu te- tea tec tee ten ter tes tet teu tna tnc tne tnn tnr tns tnt tra trc tre trn trr trs trt tru tsa tsc tse tsn tsr tss tst tsu tta ttc tte ttn ttr tts ttt ttu tua tuc tue tun tur tus tut tuu ua- uaa uac uae uan uar uas uat uau uca ucc uce ucn ucr ucs uct ucu uea uec uee uen uer ues uet un- una unc une unn unr uns unt unu ur- ura urc ure urn urr urs urt uru usa usc use usn usr uss ust usu uta utc ute utn utr uts utt utu uua uuc uue uun uur uus uut uuu