-er -ic a-a a-c a-i a-t aaa aac aae aag aai aan aar aat aau ac- aca acc ace acg aci acn acr act acu aea aec aee aeg aei aen aer aet aeu ag- aga agc age agg agi agn agr agt agu ai- aia aic aie aig aii ain air ait aiu an- ana anc ane ang ani ann anr ant anu ar- ara arc are arg ari arn arr art aru at- ata atc ate atg ati atn atr att atu au- aua auc aue aug aui aun aur aut c-- caa cac cae cag cai can car cat cau cca ccc cce ccg cci ccn ccr cct ccu ce- cea cec cee ceg cei cen cer cet ceu cga cgc cge cgg cgi cgn cgr cgt cgu ci- cia cic cie cig cii cin cir cit ciu cn- cna cnc cne cng cni cnn cnr cnt cnu cra crc cre crg cri crn crr crt cru cta ctc cte ctg cti ctn ctr ctt ctu cua cuc cue cug cui cun cur cut cuu eaa eac eae eag eai ean ear eat eau ec- eca ecc ece ecg eci ecn ecr ect ecu eea eec eee eeg een eer eet ega egc ege egg egi egn egr egt egu eia eic eie eig eii ein eir eit eiu en- ena enc ene eng eni enn enr ent enu era erc ere erg eri ern err ert eru eta etc ete etg eti etn etr ett etu eu- eua euc eue eug eui eun eur eut gaa gac gae gag gai gan gar gat gau gca gcc gce gcg gci gcn gcr gct gcu ge- gea gec gee geg gei gen ger get geu gga ggc ggg ggi ggn ggr ggt ggu gia gic gie gig gii gin gir git giu gna gnc gne gni gnn gnr gnt gnu gra grc gre grg gri grn grr grt gru gta gtc gte gtg gti gtn gtr gtt gtu gu- gua guc gue gug gui gun gur gut guu ia- iaa iac iae iag iai ian iar iat iau ica icc ice icg ici icn icr ict icu ie- iea iec iee ieg iei ien ier iet iga igc ige igg igi ign igr igt igu iia iic iie iii iin iir iit iiu in- ina inc ine ing ini inn inr int inu ir- ira irc ire irg iri irn irr irt iru ita itc ite itg iti itn itt itu iu- iua iuc iue iug iui iur iut n-i naa nac nae nag nai nan nar nat nau nca ncc nce ncg nci ncn ncr nct ncu ne- nea nec nee neg nei nen ner net neu nga ngc nge ngg ngi ngn ngt ngu nia nic nie nig nii nin nir nit niu nna nnc nne nng nni nnn nnt nnu nra nrc nre nrg nri nrn nrr nrt nru nta ntc nte ntg nti ntn ntr ntt ntu nua nuc nue nug nui nun nur nut nuu ra- raa rac rae rag rai ran rar rat rau rca rcc rce rcg rci rcn rcr rct rcu re- rea rec ree reg rei ren rer ret reu rga rgc rge rgg rgi rgn rgr rgt ria ric rie rig rii rin rir rit rna rnc rng rni rnn rnr rnt rnu rra rrc rrg rri rrn rrr rrt rru rta rtc rte rtg rti rtn rtr rtt rtu rua ruc rue rug rui run rur rut ruu taa tac tae tag tai tan tar tat tau tca tcc tce tcg tci tcn tcr tct tcu te- tea tec tee teg tei ten ter tet teu tga tgc tge tgg tgi tgn tgr tgt tgu tia tic tie tig tii tin tir tit tiu tna tnc tne tng tni tnn tnr tnt tra trc tre trg tri trn trr trt tru tta ttc tte ttg tti ttn ttr ttt ttu tua tuc tue tug tui tun tur tut tuu ua- uaa uac uae uag uai uan uar uat uau uca ucc uce ucg uci ucn ucr uct ucu uea uec uee ueg uei uen uer uet uga ugc uge ugg ugi ugn ugr ugt ugu uia uic uie uig uii uin uir uit uiu un- una unc une ung uni unn unr unt unu ur- ura urc ure urg uri urn urr urt uru uta utc ute uti utn utr utt utu uua uuc uue uug uun uur uut uuu