-er a-a a-i aaa aae aag aai aak aap aar aas aea aee aeg aei aek aep aer aes ag- aga age agg agi agk agp agr ags ai- aia aie aig aii aik aip air ais aka ake akg aki akk akp akr aks ap- apa ape apg api apk app apr aps ar- ara are arg ari ark arp arr ars as- asa ase asg asi ask asp asr ass eaa eae eag eai eak eap ear eas eea eee eeg eek eep eer ees ega ege egg egi egp egr egs eia eie eig eii eik eip eir eis eka eke ekg eki ekp ekr eks ep- epa epe epg epi epp epr eps era ere erg eri erk erp err ers es- esa ese esg esi esk esp esr ess g-p gaa gae gag gai gak gap gar gas ge- gea gee geg gei gek gep ger ges gga ggg ggi ggp ggr ggs gia gie gig gii gik gip gir gis gka gkp gks gpa gpe gpg gpi gpk gpp gpr gps gra gre grg gri grk grp grr grs gsa gse gsg gsi gsk gsp gsr gss ia- iaa iae iag iai iap iar ias ie- iea iee ieg iei iek iep ier ies iga ige igg igi igk igp igr igs iia iie iii iip iir iis ika ike iki ikk ikr iks ipa ipe ipg ipi ipp ipr ips ir- ira ire irg iri irk irp irr irs is- isa ise isg isi isk isp isr iss ka- kaa kae kag kai kak kap kar kas ke- kea kee keg kei kek kep ker kes kga kgi kgp kgs kia kie kig kii kik kip kir kis kke kki kkk kkp kkr kks kpa kpe kpi kpk kpp kpr kps kra krg kri krk krp krr krs ksa kse ksg ksi ksk ksp ksr kss p-p paa pae pag pai pak pap par pas pea pee peg pei pek pep per pes pga pge pgg pgi pgk pgp pgr pgs pia pie pig pii pik pip pir pis pka pke pkg pki pkp pkr pks ppa ppe ppg ppi ppk ppp ppr pps pra pre prg pri prk prp prr prs ps- psa pse psg psi psk psp psr pss ra- raa rae rag rai rak rap rar ras re- rea ree reg rei rek rep rer res rga rge rgg rgi rgk rgp rgr rgs ria rie rig rii rik rip rir ris rke rkg rkk rkp rks rpa rpe rpg rpi rpk rpp rpr rps rra rrg rri rrk rrp rrr rrs rsa rse rsg rsi rsk rsp rsr rss saa sae sag sai sak sap sar sas se- sea see seg sei sek sep ser ses sga sge sgg sgi sgk sgp sgr sgs sia sie sig sii sik sip sir sis sk- ska ske skg ski skk skp skr sks spa spe spg spi spk spp spr sps sr- sra sre srg sri srk srp srr srs ss- ssa sse ssg ssi ssk ssp ssr sss