-er a-a a-i a-t aaa aae aag aai aap aar aas aat aea aee aeg aei aep aer aes aet ag- aga age agg agi agp agr ags agt ai- aia aie aig aii aip air ais ait ap- apa ape apg api app apr aps apt ar- ara are arg ari arp arr ars art as- asa ase asg asi asp asr ass ast at- ata ate atg ati atp atr ats att eaa eae eag eai eap ear eas eat eea eee eeg eep eer ees eet ega ege egg egi egp egr egs egt eia eie eig eii eip eir eis eit ep- epa epe epg epi epp epr eps ept era ere erg eri erp err ers ert es- esa ese esg esi esp esr ess est eta ete etg eti etp etr ets ett g-p gaa gae gag gai gap gar gas gat ge- gea gee geg gei gep ger ges get gga ggg ggi ggp ggr ggs ggt gia gie gig gii gip gir gis git gpa gpe gpg gpi gpp gpr gps gpt gra gre grg gri grp grr grs grt gsa gse gsg gsi gsp gsr gss gst gta gte gtg gti gtp gtr gts gtt ia- iaa iae iag iai iap iar ias iat ie- iea iee ieg iei iep ier ies iet iga ige igg igi igp igr igs igt iia iie iii iip iir iis iit ipa ipe ipg ipi ipp ipr ips ipt ir- ira ire irg iri irp irr irs irt is- isa ise isg isi isp isr iss ist ita ite itg iti itp its itt p-p paa pae pag pai pap par pas pat pea pee peg pei pep per pes pet pga pge pgg pgi pgp pgr pgs pgt pia pie pig pii pip pir pis pit ppa ppe ppg ppi ppp ppr pps ppt pra pre prg pri prp prr prs prt ps- psa pse psg psi psp psr pss pst pt- pta pte ptg pti ptp ptr pts ptt ra- raa rae rag rai rap rar ras rat re- rea ree reg rei rep rer res ret rga rge rgg rgi rgp rgr rgs rgt ria rie rig rii rip rir ris rit rpa rpe rpg rpi rpp rpr rps rpt rra rrg rri rrp rrr rrs rrt rsa rse rsg rsi rsp rsr rss rst rta rte rtg rti rtp rtr rts rtt saa sae sag sai sap sar sas sat se- sea see seg sei sep ser ses set sga sge sgg sgi sgp sgr sgs sgt sia sie sig sii sip sir sis sit spa spe spg spi spp spr sps spt sr- sra sre srg sri srp srr srs srt ss- ssa sse ssg ssi ssp ssr sss sst sta ste stg sti stp str sts stt taa tae tag tai tap tar tas tat te- tea tee teg tei tep ter tes tet tga tge tgg tgi tgp tgr tgs tgt tia tie tig tii tip tir tis tit tpa tpe tpg tpi tpp tpr tps tpt tra tre trg tri trp trr trs trt tsa tse tsg tsi tsp tsr tss tst tta tte ttg tti ttp ttr tts ttt