-er a-a a-i aaa aae aaf aag aai aao aar aav aea aee aef aeg aei aeo aer aev af- afa afe aff afg afi afo afr afv ag- aga age agf agg agi ago agr agv ai- aia aie aif aig aii aio air aiv aoa aoe aof aog aoi aoo aor aov ar- ara are arf arg ari aro arr arv av- ava ave avf avg avi avo avr eaa eae eaf eag eai eao ear eav eea eee eef eeg eeo eer eev ef- efa efe eff efg efi efo efr ega ege egf egg egi ego egr eia eie eif eig eii eio eir eiv eo- eoa eoe eof eog eoi eoo eor era ere erf erg eri ero err erv eva eve evf evg evi evo evr evv faa fae faf fag fai fao far fav fea fee fef feg fei feo fer fev ffa ffe fff ffg ffi ffo ffr ffv fga fge fgf fgg fgi fgr fgv fia fie fif fig fii fir foa foe fof fog foi foo for fra fre frf frg fri fro frr fva fvg gaa gae gaf gag gai gao gar gav ge- gea gee gef geg gei geo ger gev gfa gfe gff gfi gfo gfr gga ggg ggi ggo ggr ggv gia gie gif gig gii gio gir giv goa goe gof gog goi goo gor gov gra gre grf grg gri gro grr grv gva gve gvf gvg gvi gvo gvr i-f i-v ia- iaa iae iaf iag iai iao iar iav ie- iea iee ief ieg iei ier iev ifa ife iff ifg ifi ifo ifr iga ige igf igg igi igo igr iia iie iif iii iio iir io- ioa ioe iof iog ioi ioo ior iov ir- ira ire irf irg iri iro irr irv iva ive ivf ivg ivi ivo ivr ivv o-i oaa oae oaf oag oai oao oar oav oea oee oef oeg oei oeo oer of- ofa ofe off ofg ofi ofo ofr ofv oga oge ogf ogg ogi ogo oia oie oif oii oio oir oiv oo- ooa oof oog ooi ooo oor oov or- ora ore orf org ori oro orr orv ov- ova ove ovf ovi ovo ovv ra- raa rae raf rag rai rao rar rav re- rea ree ref reg rei reo rer rev rfa rfe rff rfg rfi rfo rfr rfv rga rge rgf rgg rgi rgo rgr rgv ria rie rif rig rii rio rir riv roa roe rof rog roi roo ror rov rra rrf rrg rri rrr rva rve rvf rvg rvi rvo rvr rvv v-a v-e vaa vae vag vai vao var vav vea vee vef veg vei veo ver vfa vff vfg vfi vfr vfv vga vgf vgg vgo vgr vi- via vie vif vig vii vio vir viv voa voe vof vog voi voo vor vov vra vre vrf vrg vri vrr vva vvg vvi vvo vvr vvv