-er a-a a-c a-t aaa aac aad aae aao aar aat aau ac- aca acc acd ace aco acr act acu ad- ada adc add ade ado adr adt adu aea aec aed aee aeo aer aet aeu aoa aoc aod aoe aoo aor aot aou ar- ara arc ard are aro arr art aru at- ata atc atd ate ato atr att atu au- aua auc aud aue auo aur aut c-- caa cac cad cae cao car cat cau cca ccc ccd cce cco ccr cct ccu cda cdc cdd cde cdo cdr cdt cdu ce- cea cec ced cee ceo cer cet ceu co- coa coc cod coe coo cor cot cou cra crc crd cre cro crr crt cru cta ctc ctd cte cto ctr ctt ctu cua cuc cud cue cuo cur cut cuu daa dac dad dae dao dar dat dau dca dcc dcd dce dco dcr dct dcu dda ddc ddd dde ddo ddr ddt ddu de- dea dec ded dee deo der det deu doa doc dod doe doo dor dot dou dra drc drd dre dro drr drt dru dta dtc dtd dte dto dtr dtt dtu dua duc dud due duo dur dut eaa eac ead eae eao ear eat eau ec- eca ecc ecd ece eco ecr ect ecu ed- eda edc edd ede edo edr edt edu eea eec eed eee eeo eer eet eo- eoa eoc eod eoe eoo eor eot eou era erc erd ere ero err ert eru eta etc etd ete eto etr ett etu eu- eua euc eud eue eur eut oaa oac oad oae oao oar oat oau oc- oca occ ocd oco ocr oct ocu oda odc odd ode odo odr odt odu oea oec oed oee oeo oer oet oo- ooa ooc ood ooo oor oot or- ora orc ord ore oro orr ort oru ot- ota otc otd ote oto otr ott otu ou- oua ouc oud oue ouo our out ra- raa rac rad rae rao rar rat rau rca rcc rcd rce rco rcr rct rcu rda rdc rdd rde rdo rdr rdt rdu re- rea rec red ree reo rer ret reu roa roc rod roe roo ror rot rou rra rrc rrd rrr rrt rru rta rtc rtd rte rto rtr rtt rtu rua ruc rud rue ruo rur rut ruu taa tac tad tae tao tar tat tau tca tcc tcd tce tco tcr tct tcu tda tdc tdd tde tdo tdr tdt tdu te- tea tec ted tee teo ter tet teu to- toa toc tod toe too tor tot tou tra trc trd tre tro trr trt tru tta ttc ttd tte tto ttr ttt ttu tua tuc tud tue tuo tur tut tuu ua- uaa uac uad uae uao uar uat uau uca ucc ucd uce uco ucr uct ucu uda udc udd ude udo udr udt udu uea uec ued uee uer uet uoa uoc uod uoe uoo uor uot ur- ura urc urd ure uro urr urt uru uta utc utd ute uto utr utt utu uua uuc uue uur uut uuu