-er a-a a-t aaa aae aag aao aap aar aat aea aee aeg aeo aep aer aet ag- aga age agg ago agp agr agt aoa aoe aog aoo aop aor aot ap- apa ape apg apo app apr apt ar- ara are arg aro arp arr art at- ata ate atg ato atp atr att eaa eae eag eao eap ear eat eea eee eeg eeo eep eer eet ega ege egg ego egp egr egt eo- eoa eoe eog eoo eop eor eot ep- epa epe epg epo epp epr ept era ere erg ero erp err ert eta ete etg eto etp etr ett g-p gaa gae gag gao gap gar gat ge- gea gee geg geo gep ger get gga ggg ggo ggp ggr ggt goa goe gog goo gop gor got gpa gpe gpg gpo gpp gpr gpt gra gre grg gro grp grr grt gta gte gtg gto gtp gtr gtt oaa oae oag oao oap oar oat oea oee oeg oeo oep oer oet oga oge ogg ogo ogp ogt oo- ooa oog ooo oop oor oot op- opa ope opg opo opp opr opt or- ora ore org oro orp orr ort ot- ota ote otg oto otp otr ott p-p paa pae pag pao pap par pat pea pee peg peo pep per pet pga pge pgg pgo pgp pgr pgt poa poe pog poo pop por pot ppa ppe ppg ppo ppp ppr ppt pra pre prg pro prp prr prt pt- pta pte ptg pto ptp ptr ptt ra- raa rae rag rao rap rar rat re- rea ree reg reo rep rer ret rga rge rgg rgo rgp rgr rgt roa roe rog roo rop ror rot rpa rpe rpg rpo rpp rpr rpt rra rrg rrp rrr rrt rta rte rtg rto rtp rtr rtt taa tae tag tao tap tar tat te- tea tee teg teo tep ter tet tga tge tgg tgo tgp tgr tgt to- toa toe tog too top tor tot tpa tpe tpg tpo tpp tpr tpt tra tre trg tro trp trr trt tta tte ttg tto ttp ttr ttt