a-a a-t aaa aaf aao aar aat aau aav af- afa aff afo afr aft afu afv aoa aof aoo aor aot aou aov ar- ara arf aro arr art aru arv at- ata atf ato atr att atu atv au- aua auf auo aur aut auv av- ava avf avo avr avt avu faa faf fao far fat fau fav ffa fff ffo ffr fft ffu ffv foa fof foo for fot fou fra frf fro frr frt fru fta ftf fto ftr ftt ftu ftv fua fuf fuo fur fut fuu fuv fva fvt oaa oaf oao oar oat oau oav of- ofa off ofo ofr oft ofu ofv oo- ooa oof ooo oor oot oov or- ora orf oro orr ort oru orv ot- ota otf oto otr ott otu otv ou- oua ouf ouo our out ov- ova ovf ovo ovv ra- raa raf rao rar rat rau rav rfa rff rfo rfr rft rfu rfv roa rof roo ror rot rou rov rra rrf rrr rrt rru rta rtf rto rtr rtt rtu rtv rua ruf ruo rur rut ruu ruv rva rvf rvo rvr rvt rvu rvv taa taf tao tar tat tau tav tfa tff tfo tfr tft tfu to- toa tof too tor tot tou tov tra trf tro trr trt tru trv tta ttf tto ttr ttt ttu ttv tua tuf tuo tur tut tuu tuv tva tvf tvo tvr tvt tvu ua- uaa uaf uao uar uat uau uav ufa uff ufo ufr uft ufu ufv uoa uoo uor uot ur- ura urf uro urr urt uru uta utf uto utr utt utu utv uua uur uut uuu uva uvf uvo uvu uvv v-a vaa vao var vat vau vav vfa vff vfr vft vfu vfv voa vof voo vor vot vou vov vra vrf vrr vrt vru vta vto vtr vtt vtu vtv vur vut vuv vva vvo vvr vvt vvv