-er a-a a-i a-t aaa aae aag aai aap aar aat aav aea aee aeg aei aep aer aet aev ag- aga age agg agi agp agr agt agv ai- aia aie aig aii aip air ait aiv ap- apa ape apg api app apr apt apv ar- ara are arg ari arp arr art arv at- ata ate atg ati atp atr att atv av- ava ave avg avi avp avr avt eaa eae eag eai eap ear eat eav eea eee eeg eep eer eet eev ega ege egg egi egp egr egt eia eie eig eii eip eir eit eiv ep- epa epe epg epi epp epr ept era ere erg eri erp err ert erv eta ete etg eti etp etr ett etv eva eve evg evi evp evr evt evv g-p gaa gae gag gai gap gar gat gav ge- gea gee geg gei gep ger get gev gga ggg ggi ggp ggr ggt ggv gia gie gig gii gip gir git giv gpa gpe gpg gpi gpp gpr gpt gra gre grg gri grp grr grt grv gta gte gtg gti gtp gtr gtt gtv gva gve gvg gvi gvp gvr gvt i-v ia- iaa iae iag iai iap iar iat iav ie- iea iee ieg iei iep ier iet iev iga ige igg igi igp igr igt iia iie iii iip iir iit ipa ipe ipg ipi ipp ipr ipt ipv ir- ira ire irg iri irp irr irt irv ita ite itg iti itp itt itv iva ive ivg ivi ivp ivr ivt ivv p-p paa pae pag pai pap par pat pav pea pee peg pei pep per pet pev pga pge pgg pgi pgp pgr pgt pgv pia pie pig pii pip pir pit piv ppa ppe ppg ppi ppp ppr ppt ppv pra pre prg pri prp prr prt prv pt- pta pte ptg pti ptp ptr ptt ptv pva pve pvg pvi pvp pvr pvt pvv ra- raa rae rag rai rap rar rat rav re- rea ree reg rei rep rer ret rev rga rge rgg rgi rgp rgr rgt rgv ria rie rig rii rip rir rit riv rpa rpe rpg rpi rpp rpr rpt rpv rra rrg rri rrp rrr rrt rta rte rtg rti rtp rtr rtt rtv rva rve rvg rvi rvp rvr rvt rvv taa tae tag tai tap tar tat tav te- tea tee teg tei tep ter tet tev tga tge tgg tgi tgp tgr tgt tgv tia tie tig tii tip tir tit tiv tpa tpe tpg tpi tpp tpr tpt tpv tra tre trg tri trp trr trt trv tta tte ttg tti ttp ttr ttt ttv tva tve tvg tvi tvp tvr tvt v-a v-e vaa vae vag vai vap var vat vav vea vee veg vei vep ver vet vga vgg vgp vgr vgt vi- via vie vig vii vip vir vit viv vpa vpe vpg vpi vpp vpr vpt vra vre vrg vri vrp vrr vrt vta vte vtg vti vtr vtt vtv vva vvg vvi vvr vvt vvv