-er a-a a-c aaa aac aae aam aan aao aar aau ac- aca acc ace acm acn aco acr acu aea aec aee aem aen aeo aer aeu ama amc ame amm amn amo amr amu an- ana anc ane anm ann ano anr anu aoa aoc aoe aom aon aoo aor aou ar- ara arc are arm arn aro arr aru au- aua auc aue aum aun auo aur c-- caa cac cae cam can cao car cau cca ccc cce ccm ccn cco ccr ccu ce- cea cec cee cem cen ceo cer ceu cma cmc cme cmm cmn cmo cmr cmu cn- cna cnc cne cnm cnn cno cnr cnu co- coa coc coe com con coo cor cou cra crc cre crm crn cro crr cru cua cuc cue cum cun cuo cur cuu eaa eac eae eam ean eao ear eau ec- eca ecc ece ecm ecn eco ecr ecu eea eec eee eem een eeo eer em- ema emc eme emm emn emo emr emu en- ena enc ene enm enn eno enr enu eo- eoa eoc eoe eom eon eoo eor eou era erc ere erm ern ero err eru eu- eua euc eue eun eur m-o m-r maa mac mae mam man mao mar mau mc- mca mcc mce mcm mcn mco mcr mcu mea mec mee mem men meo mer meu mma mmc mme mmm mmn mmo mmr mmu mna mnc mne mnm mnn mno mnr mnu moa moc moe mom mon moo mor mou mra mrc mre mrm mrn mro mrr mru mua muc mue mum mun mur muu naa nac nae nam nan nao nar nau nca ncc nce ncm ncn nco ncr ncu ne- nea nec nee nem nen neo ner neu nma nmc nme nmm nmn nmo nmr nmu nna nnc nne nnm nnn nno nnu no- noa noc noe nom non noo nor nou nra nrc nre nrm nrn nro nrr nru nua nuc nue num nun nuo nur nuu oaa oac oae oam oan oao oar oau oc- oca occ ocm ocn oco ocr ocu oea oec oee oem oen oeo oer om- oma omc ome omm omn omo omr omu on- ona onc one onn ono onr onu oo- ooa ooc oom oon ooo oor or- ora orc ore orm orn oro orr oru ou- oua ouc oue oum oun ouo our ra- raa rac rae ram ran rao rar rau rca rcc rce rcm rcn rco rcr rcu re- rea rec ree rem ren reo rer reu rma rmc rme rmm rmn rmo rmr rna rnc rnm rnn rno rnr rnu roa roc roe rom ron roo ror rou rra rrc rrm rrn rrr rru rua ruc rue rum run ruo rur ruu ua- uaa uac uae uam uan uao uar uau uca ucc uce ucm ucn uco ucr ucu uea uec uee uem uen uer um- uma umc ume umm umn umo umr umu un- una unc une unm unn uno unr unu uoa uoc uoe uom uon uoo uor ur- ura urc ure urm urn uro urr uru uua uuc uue uum uun uur uuu