a-a a-t aaa aaf aan aao aar aat aav af- afa aff afn afo afr aft afv an- ana anf ann ano anr ant anv aoa aof aon aoo aor aot aov ar- ara arf arn aro arr art arv at- ata atf atn ato atr att atv av- ava avf avn avo avr avt faa faf fan fao far fat fav ffa fff ffn ffo ffr fft ffv fna fnf fnn fnr fnt fnv foa fof fon foo for fot fra frf frn fro frr frt fta ftf ftn fto ftr ftt ftv fva fvt naa naf nan nao nar nat nav nfa nff nfn nfo nfr nft nfv nna nnf nnn nno nnt nnv no- noa nof non noo nor not nov nra nrf nrn nro nrr nrt nrv nta ntf ntn nto ntr ntt ntv nva nvn nvt nvv oaa oaf oan oao oar oat oav of- ofa off ofn ofo ofr oft ofv on- ona onf onn ono onr ont oo- ooa oof oon ooo oor oot oov or- ora orf orn oro orr ort orv ot- ota otf otn oto otr ott otv ov- ova ovf ovo ovv ra- raa raf ran rao rar rat rav rfa rff rfn rfo rfr rft rfv rna rnn rno rnr rnt rnv roa rof ron roo ror rot rov rra rrf rrn rrr rrt rta rtf rtn rto rtr rtt rtv rva rvf rvn rvo rvr rvt rvv taa taf tan tao tar tat tav tfa tff tfn tfo tfr tft tna tnf tnn tno tnr tnt to- toa tof ton too tor tot tov tra trf trn tro trr trt trv tta ttf ttn tto ttr ttt ttv tva tvf tvn tvo tvr tvt v-a vaa van vao var vat vav vfa vff vfn vfr vft vfv vn- vna vnf vno vnr vnv voa vof von voo vor vot vov vra vrf vrn vrr vrt vta vto vtr vtt vtv vva vvo vvr vvt vvv