-er a-a a-t aaa aae aag aao aap aar aas aat aea aee aeg aeo aep aer aes aet ag- aga age agg ago agp agr ags agt aoa aoe aog aoo aop aor aos aot ap- apa ape apg apo app apr aps apt ar- ara are arg aro arp arr ars art as- asa ase asg aso asp asr ass ast at- ata ate atg ato atp atr ats att eaa eae eag eao eap ear eas eat eea eee eeg eeo eep eer ees eet ega ege egg ego egp egr egs egt eo- eoa eoe eog eoo eop eor eos eot ep- epa epe epg epo epp epr eps ept era ere erg ero erp err ers ert es- esa ese esg eso esp esr ess est eta ete etg eto etp etr ets ett g-p gaa gae gag gao gap gar gas gat ge- gea gee geg geo gep ger ges get gga ggg ggo ggp ggr ggs ggt goa goe gog goo gop gor gos got gpa gpe gpg gpo gpp gpr gps gpt gra gre grg gro grp grr grs grt gsa gse gsg gso gsp gsr gss gst gta gte gtg gto gtp gtr gts gtt oaa oae oag oao oap oar oas oat oea oee oeg oeo oep oer oes oet oga oge ogg ogo ogp ogs ogt oo- ooa oog ooo oop oor oos oot op- opa ope opg opo opp opr ops opt or- ora ore org oro orp orr ors ort os- osa ose osg oso osp osr oss ost ot- ota ote otg oto otp otr ots ott p-p paa pae pag pao pap par pas pat pea pee peg peo pep per pes pet pga pge pgg pgo pgp pgr pgs pgt poa poe pog poo pop por pos pot ppa ppe ppg ppo ppp ppr pps ppt pra pre prg pro prp prr prs prt ps- psa pse psg pso psp psr pss pst pt- pta pte ptg pto ptp ptr pts ptt ra- raa rae rag rao rap rar ras rat re- rea ree reg reo rep rer res ret rga rge rgg rgo rgp rgr rgs rgt roa roe rog roo rop ror ros rot rpa rpe rpg rpo rpp rpr rps rpt rra rrg rrp rrr rrs rrt rsa rse rsg rso rsp rsr rss rst rta rte rtg rto rtp rtr rts rtt saa sae sag sao sap sar sas sat se- sea see seg seo sep ser ses set sga sge sgg sgo sgp sgr sgs sgt soa soe sog soo sop sor sos sot spa spe spg spo spp spr sps spt sr- sra sre srg sro srp srr srs srt ss- ssa sse ssg sso ssp ssr sss sst sta ste stg sto stp str sts stt taa tae tag tao tap tar tas tat te- tea tee teg teo tep ter tes tet tga tge tgg tgo tgp tgr tgs tgt to- toa toe tog too top tor tos tot tpa tpe tpg tpo tpp tpr tps tpt tra tre trg tro trp trr trs trt tsa tse tsg tso tsp tsr tss tst tta tte ttg tto ttp ttr tts ttt