-er a-a aaa aae aag aao aap aar aas aea aee aeg aeo aep aer aes ag- aga age agg ago agp agr ags aoa aoe aog aoo aop aor aos ap- apa ape apg apo app apr aps ar- ara are arg aro arp arr ars as- asa ase asg aso asp asr ass eaa eae eag eao eap ear eas eea eee eeg eeo eep eer ees ega ege egg ego egp egr egs eo- eoa eoe eog eoo eop eor eos ep- epa epe epg epo epp epr eps era ere erg ero erp err ers es- esa ese esg eso esp esr ess g-p gaa gae gag gao gap gar gas ge- gea gee geg geo gep ger ges gga ggg ggo ggp ggr ggs goa goe gog goo gop gor gos gpa gpe gpg gpo gpp gpr gps gra gre grg gro grp grr grs gsa gse gsg gso gsp gsr gss oaa oae oag oao oap oar oas oea oee oeg oeo oep oer oes oga oge ogg ogo ogp ogs oo- ooa oog ooo oop oor oos op- opa ope opg opo opp opr ops or- ora ore org oro orp orr ors os- osa ose osg oso osp osr oss p-p paa pae pag pao pap par pas pea pee peg peo pep per pes pga pge pgg pgo pgp pgr pgs poa poe pog poo pop por pos ppa ppe ppg ppo ppp ppr pps pra pre prg pro prp prr prs ps- psa pse psg pso psp psr pss ra- raa rae rag rao rap rar ras re- rea ree reg reo rep rer res rga rge rgg rgo rgp rgr rgs roa roe rog roo rop ror ros rpa rpe rpg rpo rpp rpr rps rra rrg rrp rrr rrs rsa rse rsg rso rsp rsr rss saa sae sag sao sap sar sas se- sea see seg seo sep ser ses sga sge sgg sgo sgp sgr sgs soa soe sog soo sop sor sos spa spe spg spo spp spr sps sr- sra sre srg sro srp srr srs ss- ssa sse ssg sso ssp ssr sss