-er a-a a-c aaa aac aae aag aam aao aar aau ac- aca acc ace acg acm aco acr acu aea aec aee aeg aem aeo aer aeu ag- aga agc age agg agm ago agr agu ama amc ame amg amm amo amr amu aoa aoc aoe aog aom aoo aor aou ar- ara arc are arg arm aro arr aru au- aua auc aue aug aum auo aur c-- caa cac cae cag cam cao car cau cca ccc cce ccg ccm cco ccr ccu ce- cea cec cee ceg cem ceo cer ceu cga cgc cge cgg cgm cgo cgr cgu cma cmc cme cmg cmm cmo cmr cmu co- coa coc coe cog com coo cor cou cra crc cre crg crm cro crr cru cua cuc cue cug cum cuo cur cuu eaa eac eae eag eam eao ear eau ec- eca ecc ece ecg ecm eco ecr ecu eea eec eee eeg eem eeo eer ega egc ege egg egm ego egr egu em- ema emc eme emg emm emo emr emu eo- eoa eoc eoe eog eom eoo eor eou era erc ere erg erm ero err eru eu- eua euc eue eug eur gaa gac gae gag gam gao gar gau gca gcc gce gcg gcm gco gcr gcu ge- gea gec gee geg gem geo ger geu gga ggc ggg ggm ggo ggr ggu gma gmc gme gmg gmm gmo gmr goa goc goe gog gom goo gor gou gra grc gre grg grm gro grr gru gu- gua guc gue gug gum guo gur guu m-o m-r maa mac mae mag mam mao mar mau mc- mca mcc mce mcg mcm mco mcr mcu mea mec mee meg mem meo mer meu mga mgc mge mgm mgo mgr mgu mma mmc mme mmg mmm mmo mmr mmu moa moc moe mog mom moo mor mou mra mrc mre mrg mrm mro mrr mru mua muc mue mug mum mur muu oaa oac oae oag oam oao oar oau oc- oca occ ocg ocm oco ocr ocu oea oec oee oeg oem oeo oer oga ogc oge ogg ogo om- oma omc ome omg omm omo omr omu oo- ooa ooc oog oom ooo oor or- ora orc ore org orm oro orr oru ou- oua ouc oue oum ouo our ra- raa rac rae rag ram rao rar rau rca rcc rce rcg rcm rco rcr rcu re- rea rec ree reg rem reo rer reu rga rgc rge rgg rgo rgr rma rmc rme rmg rmm rmo rmr roa roc roe rog rom roo ror rou rra rrc rrg rrm rrr rru rua ruc rue rug rum ruo rur ruu ua- uaa uac uae uag uam uao uar uau uca ucc uce ucg ucm uco ucr ucu uea uec uee ueg uem uer uga ugc uge ugg ugm ugo ugr ugu um- uma umc ume umg umm umo umr umu uoa uoc uoe uog uom uoo uor ur- ura urc ure urg urm uro urr uru uua uuc uue uug uum uur uuu