-er a-a a-c a-t aaa aac aae aan aao aar aat aau ac- aca acc ace acn aco acr act acu aea aec aee aen aeo aer aet aeu an- ana anc ane ann ano anr ant anu aoa aoc aoe aon aoo aor aot aou ar- ara arc are arn aro arr art aru at- ata atc ate atn ato atr att atu au- aua auc aue aun auo aur aut c-- caa cac cae can cao car cat cau cca ccc cce ccn cco ccr cct ccu ce- cea cec cee cen ceo cer cet ceu cn- cna cnc cne cnn cno cnr cnt cnu co- coa coc coe con coo cor cot cou cra crc cre crn cro crr crt cru cta ctc cte ctn cto ctr ctt ctu cua cuc cue cun cuo cur cut cuu eaa eac eae ean eao ear eat eau ec- eca ecc ece ecn eco ecr ect ecu eea eec eee een eeo eer eet en- ena enc ene enn eno enr ent enu eo- eoa eoc eoe eon eoo eor eot eou era erc ere ern ero err ert eru eta etc ete etn eto etr ett etu eu- eua euc eue eun eur eut naa nac nae nan nao nar nat nau nca ncc nce ncn nco ncr nct ncu ne- nea nec nee nen neo ner net neu nna nnc nne nnn nno nnt nnu no- noa noc noe non noo nor not nou nra nrc nre nrn nro nrr nrt nru nta ntc nte ntn nto ntr ntt ntu nua nuc nue nun nuo nur nut nuu oaa oac oae oan oao oar oat oau oc- oca occ ocn oco ocr oct ocu oea oec oee oen oeo oer oet on- ona onc one onn ono onr ont onu oo- ooa ooc oon ooo oor oot or- ora orc ore orn oro orr ort oru ot- ota otc ote otn oto otr ott otu ou- oua ouc oue oun ouo our out ra- raa rac rae ran rao rar rat rau rca rcc rce rcn rco rcr rct rcu re- rea rec ree ren reo rer ret reu rna rnc rnn rno rnr rnt rnu roa roc roe ron roo ror rot rou rra rrc rrn rrr rrt rru rta rtc rte rtn rto rtr rtt rtu rua ruc rue run ruo rur rut ruu taa tac tae tan tao tar tat tau tca tcc tce tcn tco tcr tct tcu te- tea tec tee ten teo ter tet teu tna tnc tne tnn tno tnr tnt to- toa toc toe ton too tor tot tou tra trc tre trn tro trr trt tru tta ttc tte ttn tto ttr ttt ttu tua tuc tue tun tuo tur tut tuu ua- uaa uac uae uan uao uar uat uau uca ucc uce ucn uco ucr uct ucu uea uec uee uen uer uet un- una unc une unn uno unr unt unu uoa uoc uoe uon uoo uor uot ur- ura urc ure urn uro urr urt uru uta utc ute utn uto utr utt utu uua uuc uue uun uur uut uuu