a-a a-t aaa aaf aam aan aao aar aat af- afa aff afm afn afo afr aft ama amf amm amn amo amr amt an- ana anf anm ann ano anr ant aoa aof aom aon aoo aor aot ar- ara arf arm arn aro arr art at- ata atf atm atn ato atr att faa faf fam fan fao far fat ffa fff ffm ffn ffo ffr fft fma fmf fmm fmn fmo fmr fmt fna fnf fnm fnn fnr fnt foa fof fom fon foo for fot fra frf frm frn fro frr frt fta ftf ftm ftn fto ftr ftt m-f m-o m-r maa maf mam man mao mar mat mfa mff mfm mfn mfo mfr mft mma mmf mmm mmn mmo mmr mmt mna mnf mnm mnn mno mnr mnt moa mof mom mon moo mor mot mra mrf mrm mrn mro mrr mrt mta mtf mtm mtn mto mtr mtt naa naf nam nan nao nar nat nfa nff nfn nfo nfr nft nma nmm nmn nmo nmr nmt nna nnf nnm nnn nno nnt no- noa nof nom non noo nor not nra nrf nrm nrn nro nrr nrt nta ntf ntm ntn nto ntr ntt oaa oaf oam oan oao oar oat of- ofa off ofm ofn ofo ofr oft om- oma omf omm omn omo omr omt on- ona onf onn ono onr ont oo- ooa oof oom oon ooo oor oot or- ora orf orm orn oro orr ort ot- ota otf otm otn oto otr ott ra- raa raf ram ran rao rar rat rfa rff rfm rfn rfo rfr rft rma rmf rmm rmn rmo rmr rmt rna rnm rnn rno rnr rnt roa rof rom ron roo ror rot rra rrf rrm rrn rrr rrt rta rtf rtm rtn rto rtr rtt taa taf tam tan tao tar tat tfa tff tfm tfn tfo tfr tft tma tmf tmm tmn tmo tmr tmt tna tnf tnm tnn tno tnr tnt to- toa tof tom ton too tor tot tra trf trm trn tro trr trt tta ttf ttm ttn tto ttr ttt