-er a-a a-c a-t aaa aac aae aao aar aas aat aau ac- aca acc ace aco acr acs act acu aea aec aee aeo aer aes aet aeu aoa aoc aoe aoo aor aos aot aou ar- ara arc are aro arr ars art aru as- asa asc ase aso asr ass ast asu at- ata atc ate ato atr ats att atu au- aua auc aue auo aur aus aut c-- caa cac cae cao car cas cat cau cca ccc cce cco ccr ccs cct ccu ce- cea cec cee ceo cer ces cet ceu co- coa coc coe coo cor cos cot cou cra crc cre cro crr crs crt cru csa csc cse cso csr css cst csu cta ctc cte cto ctr cts ctt ctu cua cuc cue cuo cur cus cut cuu eaa eac eae eao ear eas eat eau ec- eca ecc ece eco ecr ecs ect ecu eea eec eee eeo eer ees eet eo- eoa eoc eoe eoo eor eos eot eou era erc ere ero err ers ert eru es- esa esc ese eso esr ess est esu eta etc ete eto etr ets ett etu eu- eua euc eue eur eus eut oaa oac oae oao oar oas oat oau oc- oca occ oco ocr ocs oct ocu oea oec oee oeo oer oes oet oo- ooa ooc ooo oor oos oot or- ora orc ore oro orr ors ort oru os- osa osc ose oso osr oss ost osu ot- ota otc ote oto otr ots ott otu ou- oua ouc oue ouo our ous out ra- raa rac rae rao rar ras rat rau rca rcc rce rco rcr rcs rct rcu re- rea rec ree reo rer res ret reu roa roc roe roo ror ros rot rou rra rrc rrr rrs rrt rru rsa rsc rse rso rsr rss rst rsu rta rtc rte rto rtr rts rtt rtu rua ruc rue ruo rur rus rut ruu saa sac sae sao sar sas sat sau sca scc sce sco scr scs sct scu se- sea sec see seo ser ses set seu soa soc soe soo sor sos sot sou sr- sra src sre sro srr srs srt ss- ssa ssc sse sso ssr sss sst ssu sta stc ste sto str sts stt stu sua suc sue suo sur sus sut suu taa tac tae tao tar tas tat tau tca tcc tce tco tcr tcs tct tcu te- tea tec tee teo ter tes tet teu to- toa toc toe too tor tos tot tou tra trc tre tro trr trs trt tru tsa tsc tse tso tsr tss tst tsu tta ttc tte tto ttr tts ttt ttu tua tuc tue tuo tur tus tut tuu ua- uaa uac uae uao uar uas uat uau uca ucc uce uco ucr ucs uct ucu uea uec uee uer ues uet uoa uoc uoe uoo uor uos uot ur- ura urc ure uro urr urs urt uru usa usc use uso usr uss ust usu uta utc ute uto utr uts utt utu uua uuc uue uur uus uut uuu