-er -ic a-a a-c a-i a-t aaa aac aae aag aai aan aar aas aat aau ac- aca acc ace acg aci acn acr acs act acu aea aec aee aeg aei aen aer aes aet aeu ag- aga agc age agg agi agn agr ags agt agu ai- aia aic aie aig aii ain air ais ait aiu an- ana anc ane ang ani ann anr ans ant anu ar- ara arc are arg ari arn arr ars art aru as- asa asc ase asg asi asn asr ass ast asu at- ata atc ate atg ati atn atr ats att atu au- aua auc aue aug aui aun aur aus aut c-- caa cac cae cag cai can car cas cat cau cca ccc cce ccg cci ccn ccr ccs cct ccu ce- cea cec cee ceg cei cen cer ces cet ceu cga cgc cge cgg cgi cgn cgr cgs cgt cgu ci- cia cic cie cig cii cin cir cis cit ciu cn- cna cnc cne cng cni cnn cnr cns cnt cnu cra crc cre crg cri crn crr crs crt cru csa csc cse csg csi csn csr css cst csu cta ctc cte ctg cti ctn ctr cts ctt ctu cua cuc cue cug cui cun cur cus cut cuu eaa eac eae eag eai ean ear eas eat eau ec- eca ecc ece ecg eci ecn ecr ecs ect ecu eea eec eee eeg een eer ees eet ega egc ege egg egi egn egr egs egt egu eia eic eie eig eii ein eir eis eit eiu en- ena enc ene eng eni enn enr ens ent enu era erc ere erg eri ern err ers ert eru es- esa esc ese esg esi esn esr ess est esu eta etc ete etg eti etn etr ets ett etu eu- eua euc eue eug eui eun eur eus eut gaa gac gae gag gai gan gar gas gat gau gca gcc gce gcg gci gcn gcr gcs gct gcu ge- gea gec gee geg gei gen ger ges get geu gga ggc ggg ggi ggn ggr ggs ggt ggu gia gic gie gig gii gin gir gis git giu gna gnc gne gni gnn gnr gns gnt gnu gra grc gre grg gri grn grr grs grt gru gsa gsc gse gsg gsi gsn gsr gss gst gsu gta gtc gte gtg gti gtn gtr gts gtt gtu gu- gua guc gue gug gui gun gur gus gut guu ia- iaa iac iae iag iai ian iar ias iat iau ica icc ice icg ici icn icr ics ict icu ie- iea iec iee ieg iei ien ier ies iet iga igc ige igg igi ign igr igs igt igu iia iic iie iii iin iir iis iit iiu in- ina inc ine ing ini inn inr ins int inu ir- ira irc ire irg iri irn irr irs irt iru is- isa isc ise isg isi isn isr iss ist isu ita itc ite itg iti itn its itt itu iu- iua iuc iue iug iui iur ius iut n-i naa nac nae nag nai nan nar nas nat nau nca ncc nce ncg nci ncn ncr ncs nct ncu ne- nea nec nee neg nei nen ner nes net neu nga ngc nge ngg ngi ngn ngs ngt ngu nia nic nie nig nii nin nir nis nit niu nna nnc nne nng nni nnn nns nnt nnu nra nrc nre nrg nri nrn nrr nrs nrt nru nsa nsc nse nsg nsi nsn nsr nss nst nsu nta ntc nte ntg nti ntn ntr nts ntt ntu nua nuc nue nug nui nun nur nus nut nuu ra- raa rac rae rag rai ran rar ras rat rau rca rcc rce rcg rci rcn rcr rcs rct rcu re- rea rec ree reg rei ren rer res ret reu rga rgc rge rgg rgi rgn rgr rgs rgt ria ric rie rig rii rin rir ris rit rna rnc rng rni rnn rnr rns rnt rnu rra rrc rrg rri rrn rrr rrs rrt rru rsa rsc rse rsg rsi rsn rsr rss rst rsu rta rtc rte rtg rti rtn rtr rts rtt rtu rua ruc rue rug rui run rur rus rut ruu saa sac sae sag sai san sar sas sat sau sca scc sce scg sci scn scr scs sct scu se- sea sec see seg sei sen ser ses set seu sga sgc sge sgg sgi sgn sgr sgs sgt sgu sia sic sie sig sii sin sir sis sit siu sna snc sne sng sni snn snr sns snt snu sr- sra src sre srg sri srn srr srs srt ss- ssa ssc sse ssg ssi ssn ssr sss sst ssu sta stc ste stg sti stn str sts stt stu sua suc sue sug sui sun sur sus sut suu taa tac tae tag tai tan tar tas tat tau tca tcc tce tcg tci tcn tcr tcs tct tcu te- tea tec tee teg tei ten ter tes tet teu tga tgc tge tgg tgi tgn tgr tgs tgt tgu tia tic tie tig tii tin tir tis tit tiu tna tnc tne tng tni tnn tnr tns tnt tra trc tre trg tri trn trr trs trt tru tsa tsc tse tsg tsi tsn tsr tss tst tsu tta ttc tte ttg tti ttn ttr tts ttt ttu tua tuc tue tug tui tun tur tus tut tuu ua- uaa uac uae uag uai uan uar uas uat uau uca ucc uce ucg uci ucn ucr ucs uct ucu uea uec uee ueg uei uen uer ues uet uga ugc uge ugg ugi ugn ugr ugs ugt ugu uia uic uie uig uii uin uir uis uit uiu un- una unc une ung uni unn unr uns unt unu ur- ura urc ure urg uri urn urr urs urt uru usa usc use usg usi usn usr uss ust