-er a-a a-c a-t aaa aac aad aae aao aar aas aat aau ac- aca acc acd ace aco acr acs act acu ad- ada adc add ade ado adr ads adt adu aea aec aed aee aeo aer aes aet aeu aoa aoc aod aoe aoo aor aos aot aou ar- ara arc ard are aro arr ars art aru as- asa asc asd ase aso asr ass ast asu at- ata atc atd ate ato atr ats att atu au- aua auc aud aue auo aur aus aut c-- caa cac cad cae cao car cas cat cau cca ccc ccd cce cco ccr ccs cct ccu cda cdc cdd cde cdo cdr cds cdt cdu ce- cea cec ced cee ceo cer ces cet ceu co- coa coc cod coe coo cor cos cot cou cra crc crd cre cro crr crs crt cru csa csc csd cse cso csr css cst csu cta ctc ctd cte cto ctr cts ctt ctu cua cuc cud cue cuo cur cus cut cuu daa dac dad dae dao dar das dat dau dca dcc dcd dce dco dcr dcs dct dcu dda ddc ddd dde ddo ddr dds ddt ddu de- dea dec ded dee deo der des det deu doa doc dod doe doo dor dos dot dou dra drc drd dre dro drr drs drt dru dsa dsc dsd dse dso dsr dss dst dsu dta dtc dtd dte dto dtr dts dtt dtu dua duc dud due duo dur dus dut eaa eac ead eae eao ear eas eat eau ec- eca ecc ecd ece eco ecr ecs ect ecu ed- eda edc edd ede edo edr eds edt edu eea eec eed eee eeo eer ees eet eo- eoa eoc eod eoe eoo eor eos eot eou era erc erd ere ero err ers ert eru es- esa esc esd ese eso esr ess est esu eta etc etd ete eto etr ets ett etu eu- eua euc eud eue eur eus eut oaa oac oad oae oao oar oas oat oau oc- oca occ ocd oco ocr ocs oct ocu oda odc odd ode odo odr ods odt odu oea oec oed oee oeo oer oes oet oo- ooa ooc ood ooo oor oos oot or- ora orc ord ore oro orr ors ort oru os- osa osc osd ose oso osr oss ost osu ot- ota otc otd ote oto otr ots ott otu ou- oua ouc oud oue ouo our ous out ra- raa rac rad rae rao rar ras rat rau rca rcc rcd rce rco rcr rcs rct rcu rda rdc rdd rde rdo rdr rds rdt rdu re- rea rec red ree reo rer res ret reu roa roc rod roe roo ror ros rot rou rra rrc rrd rrr rrs rrt rru rsa rsc rsd rse rso rsr rss rst rsu rta rtc rtd rte rto rtr rts rtt rtu rua ruc rud rue ruo rur rus rut ruu saa sac sad sae sao sar sas sat sau sca scc scd sce sco scr scs sct scu sda sdc sdd sde sdo sdr sds sdt sdu se- sea sec sed see seo ser ses set seu soa soc sod soe soo sor sos sot sou sr- sra src srd sre sro srr srs srt ss- ssa ssc ssd sse sso ssr sss sst ssu sta stc std ste sto str sts stt stu sua suc sud sue suo sur sus sut suu taa tac tad tae tao tar tas tat tau tca tcc tcd tce tco tcr tcs tct tcu tda tdc tdd tde tdo tdr tds tdt tdu te- tea tec ted tee teo ter tes tet teu to- toa toc tod toe too tor tos tot tou tra trc trd tre tro trr trs trt tru tsa tsc tsd tse tso tsr tss tst tsu tta ttc ttd tte tto ttr tts ttt ttu tua tuc tud tue tuo tur tus tut tuu ua- uaa uac uad uae uao uar uas uat uau uca ucc ucd uce uco ucr ucs uct ucu uda udc udd ude udo udr uds udt udu uea uec ued uee uer ues uet uoa uoc uod uoe uoo uor uos uot ur- ura urc urd ure uro urr urs urt uru usa usc usd use uso usr uss ust usu uta utc utd ute uto utr uts utt utu uua uuc uue uur uus uut uuu