-er a-a a-c aaa aac aae aag aah aar aas aau ac- aca acc ace acg ach acr acs acu aea aec aee aeg aeh aer aes aeu ag- aga agc age agg agh agr ags agu aha ahc ahe ahg ahh ahr ahs ahu ar- ara arc are arg arh arr ars aru as- asa asc ase asg ash asr ass asu au- aua auc aue aug auh aur aus c-- caa cac cae cag cah car cas cau cca ccc cce ccg cch ccr ccs ccu ce- cea cec cee ceg ceh cer ces ceu cga cgc cge cgg cgh cgr cgs cgu ch- cha chc che chg chh chr chs chu cra crc cre crg crh crr crs cru csa csc cse csg csh csr css csu cua cuc cue cug cuh cur cus cuu eaa eac eae eag eah ear eas eau ec- eca ecc ece ecg ech ecr ecs ecu eea eec eee eeg eer ees ega egc ege egg egh egr egs egu eha ehc ehe ehg ehh ehr ehs ehu era erc ere erg erh err ers eru es- esa esc ese esg esh esr ess esu eu- eua euc eue eug eur eus gaa gac gae gag gah gar gas gau gca gcc gce gcg gch gcr gcs gcu ge- gea gec gee geg geh ger ges geu gga ggc ggg ggh ggr ggs ggu gha ghc ghe ghg ghh ghr ghs gra grc gre grg grh grr grs gru gsa gsc gse gsg gsr gss gsu gu- gua guc gue gug gur gus guu haa hac hae hag hah har has hau hca hcc hce hcg hch hcr hcs he- hea hec hee heg heh her hes heu hga hgc hge hgg hgh hgr hgs hgu hha hhc hhe hhg hhh hhr hhs hhu hr- hra hrc hre hrg hrh hrr hrs hru hsa hsc hse hsg hsh hsr hss hsu hua huc hue hug huh hur hus huu ra- raa rac rae rag rah rar ras rau rca rcc rce rcg rch rcr rcs rcu re- rea rec ree reg reh rer res reu rga rgc rge rgg rgh rgr rgs rh- rha rhc rhe rhg rhh rhr rhs rhu rra rrc rrg rrh rrr rrs rru rsa rsc rse rsg rsh rsr rss rsu rua ruc rue rug ruh rur rus ruu saa sac sae sag sah sar sas sau sca scc sce scg sch scr scs scu se- sea sec see seg seh ser ses seu sga sgc sge sgg sgh sgr sgs sgu sh- sha shc she shg shh shr shs shu sr- sra src sre srg srh srr srs ss- ssa ssc sse ssg ssh ssr sss ssu sua suc sue sug suh sur sus suu ua- uaa uac uae uag uah uar uas uau uca ucc uce ucg uch ucr ucs ucu uea uec uee ueg ueh uer ues uga ugc uge ugg ugh ugr ugs ugu uha uhc uhe uhh uhr uhs uhu ur- ura urc ure urg urr urs uru usa usc use usg ush usr uss usu uua uuc uue uug uur uus uuu