-er a-a a-t aaa aae aaf aak aao aar aat aav aea aee aef aek aeo aer aet aev af- afa afe aff afk afo afr aft afv aka ake akk ako akr akv aoa aoe aof aok aoo aor aot aov ar- ara are arf ark aro arr art arv at- ata ate atf ato atr att atv av- ava ave avf avk avo avr avt eaa eae eaf eak eao ear eat eav eea eee eef eek eeo eer eet eev ef- efa efe eff efo efr eft eka eke ekf eko ekr ekt ekv eo- eoa eoe eof eok eoo eor eot era ere erf erk ero err ert erv eta ete etf etk eto etr ett etv eva eve evf evo evr evt evv faa fae faf fak fao far fat fav fea fee fef fek feo fer fet fev ffa ffe fff ffk ffo ffr fft ffv fka fkf fkk fkt foa foe fof fok foo for fot fra fre frf frk fro frr frt fta fte ftf ftk fto ftr ftt ftv fva fvk fvt k-t ka- kaa kae kaf kak kao kar kat kav ke- kea kee kef kek keo ker ket kev kfa kff kfo kke kkk kkr kkt kkv koa koe kof kok koo kor kot kra krf krk kro krr krt krv kta kte ktf ktk kto ktr ktt ktv kva kvk kvo kvr kvv oaa oae oaf oak oao oar oat oav oea oee oef oeo oer oet of- ofa ofe off ofo ofr oft ofv oka oke okk oko okr oo- ooa oof ook ooo oor oot oov or- ora ore orf ork oro orr ort orv ot- ota ote otf otk oto otr ott otv ov- ova ove ovf ovo ovv ra- raa rae raf rak rao rar rat rav re- rea ree ref rek reo rer ret rev rfa rfe rff rfk rfo rfr rft rfv rke rkf rkk rko rkt rkv roa roe rof rok roo ror rot rov rra rrf rrk rrr rrt rta rte rtf rtk rto rtr rtt rtv rva rve rvf rvo rvr rvt rvv taa tae taf tak tao tar tat tav te- tea tee tef tek teo ter tet tev tfa tfe tff tfk tfo tfr tft tka tke tkk tko tkr tkt to- toa toe tof tok too tor tot tov tra tre trf trk tro trr trt trv tta tte ttf ttk tto ttr ttt ttv tva tve tvf tvk tvo tvr tvt v-a v-e vaa vae vak vao var vat vav vea vee vef vek veo ver vet vfa vff vfr vft vfv vka vkt voa voe vof vok voo vor vot vov vra vre vrf vrk vrr vrt vta vte vtk vto vtr vtt vtv vva vvo vvr vvt vvv