-er a-a aaa aae aaf aan aao aar aav aea aee aef aen aeo aer aev af- afa afe aff afn afo afr afv an- ana ane anf ann ano anr anv aoa aoe aof aon aoo aor aov ar- ara are arf arn aro arr arv av- ava ave avf avn avo avr eaa eae eaf ean eao ear eav eea eee eef een eeo eer eev ef- efa efe eff efo efr en- ena ene enf enn eno enr env eo- eoa eoe eof eon eoo eor era ere erf ern ero err erv eva eve evf evn evo evr evv faa fae faf fan fao far fav fea fee fef fen feo fer fev ffa ffe fff ffn ffo ffr ffv fna fne fnf fnn fnr fnv foa foe fof fon foo for fra fre frf frn fro frr fva naa nae naf nan nao nar nav ne- nea nee nef nen neo ner nev nfa nfe nff nfn nfo nfr nfv nna nne nnf nnn nno nnv no- noa noe nof non noo nor nov nra nre nrf nrn nro nrr nrv nva nve nvn nvv oaa oae oaf oan oao oar oav oea oee oef oen oeo oer of- ofa ofe off ofn ofo ofr ofv on- ona one onf onn ono onr oo- ooa oof oon ooo oor oov or- ora ore orf orn oro orr orv ov- ova ove ovf ovo ovv ra- raa rae raf ran rao rar rav re- rea ree ref ren reo rer rev rfa rfe rff rfn rfo rfr rfv rna rnn rno rnr rnv roa roe rof ron roo ror rov rra rrf rrn rrr rva rve rvf rvn rvo rvr rvv v-a v-e vaa vae van vao var vav vea vee vef ven veo ver vfa vff vfn vfr vfv vn- vna vnf vno vnr vnv voa voe vof von voo vor vov vra vre vrf vrn vrr vva vvo vvr vvv