-er a-a a-c aaa aac aae aag aam aan aar aau ac- aca acc ace acg acm acn acr acu aea aec aee aeg aem aen aer aeu ag- aga agc age agg agm agn agr agu ama amc ame amg amm amn amr amu an- ana anc ane ang anm ann anr anu ar- ara arc are arg arm arn arr aru au- aua auc aue aug aum aun aur c-- caa cac cae cag cam can car cau cca ccc cce ccg ccm ccn ccr ccu ce- cea cec cee ceg cem cen cer ceu cga cgc cge cgg cgm cgn cgr cgu cma cmc cme cmg cmm cmn cmr cmu cn- cna cnc cne cng cnm cnn cnr cnu cra crc cre crg crm crn crr cru cua cuc cue cug cum cun cur cuu eaa eac eae eag eam ean ear eau ec- eca ecc ece ecg ecm ecn ecr ecu eea eec eee eeg eem een eer ega egc ege egg egm egn egr egu em- ema emc eme emg emm emn emr emu en- ena enc ene eng enm enn enr enu era erc ere erg erm ern err eru eu- eua euc eue eug eun eur gaa gac gae gag gam gan gar gau gca gcc gce gcg gcm gcn gcr gcu ge- gea gec gee geg gem gen ger geu gga ggc ggg ggm ggn ggr ggu gma gmc gme gmg gmm gmn gmr gna gnc gne gnm gnn gnr gnu gra grc gre grg grm grn grr gru gu- gua guc gue gug gum gun gur guu m-r maa mac mae mag mam man mar mau mc- mca mcc mce mcg mcm mcn mcr mcu mea mec mee meg mem men mer meu mga mgc mge mgm mgn mgr mgu mma mmc mme mmg mmm mmn mmr mmu mna mnc mne mng mnm mnn mnr mnu mra mrc mre mrg mrm mrn mrr mru mua muc mue mug mum mun mur muu naa nac nae nag nam nan nar nau nca ncc nce ncg ncm ncn ncr ncu ne- nea nec nee neg nem nen ner neu nga ngc nge ngg ngm ngn ngu nma nmc nme nmg nmm nmn nmr nmu nna nnc nne nng nnm nnn nnu nra nrc nre nrg nrm nrn nrr nru nua nuc nue nug num nun nur nuu ra- raa rac rae rag ram ran rar rau rca rcc rce rcg rcm rcn rcr rcu re- rea rec ree reg rem ren rer reu rga rgc rge rgg rgn rgr rma rmc rme rmg rmm rmn rmr rna rnc rng rnm rnn rnr rnu rra rrc rrg rrm rrn rrr rru rua ruc rue rug rum run rur ruu ua- uaa uac uae uag uam uan uar uau uca ucc uce ucg ucm ucn ucr ucu uea uec uee ueg uem uen uer uga ugc uge ugg ugm ugn ugr ugu um- uma umc ume umg umm umn umr umu un- una unc une ung unm unn unr unu ur- ura urc ure urg urm urn urr uru uua uuc uue uug uum uun uur uuu