-er a-a a-t aaa aae aag aap aar aas aat aea aee aeg aep aer aes aet ag- aga age agg agp agr ags agt ap- apa ape apg app apr aps apt ar- ara are arg arp arr ars art as- asa ase asg asp asr ass ast at- ata ate atg atp atr ats att eaa eae eag eap ear eas eat eea eee eeg eep eer ees eet ega ege egg egp egr egs egt ep- epa epe epg epp epr eps ept era ere erg erp err ers ert es- esa ese esg esp esr ess est eta ete etg etp etr ets ett g-p gaa gae gag gap gar gas gat ge- gea gee geg gep ger ges get gga ggg ggp ggr ggs ggt gpa gpe gpg gpp gpr gps gpt gra gre grg grp grr grs grt gsa gse gsg gsp gsr gss gst gta gte gtg gtp gtr gts gtt p-p paa pae pag pap par pas pat pea pee peg pep per pes pet pga pge pgg pgp pgr pgs pgt ppa ppe ppg ppp ppr pps ppt pra pre prg prp prr prs prt ps- psa pse psg psp psr pss pst pt- pta pte ptg ptp ptr pts ptt ra- raa rae rag rap rar ras rat re- rea ree reg rep rer res ret rga rge rgg rgp rgr rgs rgt rpa rpe rpg rpp rpr rps rpt rra rrg rrp rrr rrs rrt rsa rse rsg rsp rsr rss rst rta rte rtg rtp rtr rts rtt saa sae sag sap sar sas sat se- sea see seg sep ser ses set sga sge sgg sgp sgr sgs sgt spa spe spg spp spr sps spt sr- sra sre srg srp srr srs srt ss- ssa sse ssg ssp ssr sss sst sta ste stg stp str sts stt taa tae tag tap tar tas tat te- tea tee teg tep ter tes tet tga tge tgg tgp tgr tgs tgt tpa tpe tpg tpp tpr tps tpt tra tre trg trp trr trs trt tsa tse tsg tsp tsr tss tst tta tte ttg ttp ttr tts ttt