-er a-a a-i aaa aae aag aai aak aao aar aas aea aee aeg aei aek aeo aer aes ag- aga age agg agi agk ago agr ags ai- aia aie aig aii aik aio air ais aka ake akg aki akk ako akr aks aoa aoe aog aoi aok aoo aor aos ar- ara are arg ari ark aro arr ars as- asa ase asg asi ask aso asr ass eaa eae eag eai eak eao ear eas eea eee eeg eek eeo eer ees ega ege egg egi ego egr egs eia eie eig eii eik eio eir eis eka eke ekg eki eko ekr eks eo- eoa eoe eog eoi eok eoo eor eos era ere erg eri erk ero err ers es- esa ese esg esi esk eso esr ess gaa gae gag gai gak gao gar gas ge- gea gee geg gei gek geo ger ges gga ggg ggi ggo ggr ggs gia gie gig gii gik gio gir gis gka gko gks goa goe gog goi gok goo gor gos gra gre grg gri grk gro grr grs gsa gse gsg gsi gsk gso gsr gss ia- iaa iae iag iai iao iar ias ie- iea iee ieg iei iek ier ies iga ige igg igi igk igo igr igs iia iie iii iio iir iis ika ike iki ikk iko ikr iks io- ioa ioe iog ioi ioo ior ios ir- ira ire irg iri irk iro irr irs is- isa ise isg isi isk iso isr iss ka- kaa kae kag kai kak kao kar kas ke- kea kee keg kei kek keo ker kes kga kgi kgo kgs kia kie kig kii kik kio kir kis kke kki kkk kkr kks koa koe kog koi kok koo kor kos kra krg kri krk kro krr krs ksa kse ksg ksi ksk kso ksr kss o-i oaa oae oag oai oak oao oar oas oea oee oeg oei oeo oer oes oga oge ogg ogi ogo ogs oia oie oii oik oio oir ois oka oke okg oki okk oko okr oks oo- ooa oog ooi ook ooo oor oos or- ora ore org ori ork oro orr ors os- osa ose osg osi osk oso osr oss ra- raa rae rag rai rak rao rar ras re- rea ree reg rei rek reo rer res rga rge rgg rgi rgk rgo rgr rgs ria rie rig rii rik rio rir ris rke rkg rkk rko rks roa roe rog roi rok roo ror ros rra rrg rri rrk rrr rrs rsa rse rsg rsi rsk rso rsr rss saa sae sag sai sak sao sar sas se- sea see seg sei sek seo ser ses sga sge sgg sgi sgk sgo sgr sgs sia sie sig sii sik sio sir sis sk- ska ske skg ski skk sko skr sks soa soe sog soi sok soo sor sos sr- sra sre srg sri srk sro srr srs ss- ssa sse ssg ssi ssk sso ssr sss